1
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Kumar J, Sharma D, Hussain Y, Solaim, Sinhmar J, Muskan, Changotra A, Chauhan P. Exploring Diazo Compounds for the Divergent Electro-Cascade Sequence and S-H Insertion Reaction. Org Lett 2025; 27:1608-1613. [PMID: 39936898 DOI: 10.1021/acs.orglett.4c04670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2025]
Abstract
We have explored the reactivity of diazo compounds under electrochemical conditions to establish a cascade sequence of thiolation/cyclization/reduction reactions. Electrolyzing styryl diazo imides and aryl thiols enables direct access to a single diastereoisomer of 2,5-pyrrolidine-dione-fused thiochromans in good yield under mild and metal-free conditions. Notably, a tunable reactivity has been achieved via S-H insertion at the diazo center in modified reaction conditions. Based on the experimental evidences, including the detection of key intermediates and computational studies, the mechanism for the electrochemical cascade reaction has also been established.
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Affiliation(s)
- Jaswant Kumar
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu 181221, J&K, India
| | - Deepak Sharma
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu 181221, J&K, India
| | - Yaseen Hussain
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu 181221, J&K, India
| | - Solaim
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu 181221, J&K, India
| | - Jatin Sinhmar
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu 181221, J&K, India
| | - Muskan
- Department of Chemistry, School of Sciences, Cluster University of Jammu, Jammu 180002, India
| | - Avtar Changotra
- Department of Chemistry, School of Sciences, Cluster University of Jammu, Jammu 180002, India
| | - Pankaj Chauhan
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu 181221, J&K, India
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2
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Liu C, Ma Y, Lian R, Chen J, Yang M, Cheng J. Regulation of Photogenerated Redox Species through High Crystallinity Carbon Nitride for Improved C-S Coupling Reactions. CHEMSUSCHEM 2024; 17:e202301882. [PMID: 38242851 DOI: 10.1002/cssc.202301882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 01/14/2024] [Accepted: 01/19/2024] [Indexed: 01/21/2024]
Abstract
A novel and efficient approach for the synthesis of α, β-unsaturated sulfones through heterogeneous photocatalyzed C-S coupling reactions have been developed. The use of molten-salt method derived carbon nitride (MCN), a transition metal-free polymeric photocatalyst, combined with enhanced crystallinity and potassium iodide as an additive, effectively modulates photogenerated reactive redox species, markedly increasing the overall reaction selectivity. This method achieves the shortest reaction time (2 h) with high yield (up to 95 %) among the reported heterogeneous catalytic C-S bond formation reactions, matching the efficiency of the homogeneous photocatalysts. Furthermore, the application to challenging alkyne substrates has been demonstrated, underscoring the potential for a broad range of applications in pharmaceutical research and synthetic chemistry.
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Affiliation(s)
- Chen Liu
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou University, Fuzhou, 350116, China
| | - Yukun Ma
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou University, Fuzhou, 350116, China
| | - Ronghong Lian
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou University, Fuzhou, 350116, China
| | - Jiayin Chen
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou University, Fuzhou, 350116, China
| | - Mingcheng Yang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou University, Fuzhou, 350116, China
| | - Jiajia Cheng
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou University, Fuzhou, 350116, China
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3
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Zhao P, Liu Y, Zhang Y, Wang L, Ma Y. Photodriven Radical-Polar Crossover Cyclization Strategy: Synthesis of Pyrazolo[1,5- a]pyridines from Diazo Compounds. Org Lett 2024. [PMID: 38506402 DOI: 10.1021/acs.orglett.4c00812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
This work demonstrates the synthesis of a variety of perfluoroalkyl heterocycles via a visible-light-driven radical-polar crossover cyclization strategy. In this process, single-electron reduction/SNV-type/cyclization sequences follow the radical addition reaction of a diazoester, which differs from the current role of diazoesters as radical precursors/acceptors. This transformation demonstrates excellent functional group compatibility and allows for the modification of many bioactive molecules with diazoesters. Such a reaction could represent a novel approach to the photochemical transformation of diazo compounds.
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Affiliation(s)
- Peng Zhao
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, China
| | - Yanbo Liu
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, China
| | - Yuting Zhang
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, China
| | - Lei Wang
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, China
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
| | - Yongmin Ma
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, China
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4
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Sharma AK, Chand S, Kumar Pandey A, Singh KN. Easy access to α-carbonyl sulfones using cross-coupling of α-aryl-α-diazoesters with sulfonyl hydrazides. Org Biomol Chem 2023; 21:987-993. [PMID: 36617883 DOI: 10.1039/d2ob02219b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A facile synthesis of α-carbonyl sulfones has been accomplished by the cross-coupling of α-aryl-α-diazoesters with sulfonyl hydrazides in the presence of CuI and DBU. The reaction employs inexpensive and bench stable sulfonyl hydrazides as a sulfonyl source, and facilitates the migratory insertion with α-aryl-α-diazoesters under mild reaction conditions.
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Affiliation(s)
- Anup Kumar Sharma
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Shiv Chand
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Anand Kumar Pandey
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Krishna Nand Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
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5
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Cai BG, Bao YP, Pei C, Li Q, Li L, Koenigs RM, Xuan J. Photochemical synthesis of 1,2,4-triazoles via addition reaction of triplet intermediates to diazoalkanes and azomethine ylide intermediates. Chem Sci 2022; 13:13141-13146. [PMID: 36425480 PMCID: PMC9667952 DOI: 10.1039/d2sc04720a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 10/22/2022] [Indexed: 09/19/2023] Open
Abstract
The reactivity of diazoalkanes most commonly proceeds through the formation of carbene intermediates or dipolar cycloaddition reactions. The reaction of diazoalkanes with intermediates with unpaired electrons, however, is much less elaborated. Herein, we report on the photochemical reaction of acceptor-only diazoalkanes with azodicarboxylates. Photoexcitation of the latter results in the formation of a triplet species, which undergoes an addition reaction with diazoalkanes and formation of an azomethine ylide followed by dipolar cycloaddition reaction with organic nitriles to give a 1,2,4-triazole. The application of this transformation was elaborated in a broad and general substrate scope (48 examples), including scale-up via flow chemistry and downstream transformations. Experimental and computational studies were performed to elucidate the reaction mechanism and to rationalize the reaction outcome.
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Affiliation(s)
- Bao-Gui Cai
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, College of Chemistry & Chemical Engineering, Anhui University Hefei Anhui 230601 China
| | - Ye-Peng Bao
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, College of Chemistry & Chemical Engineering, Anhui University Hefei Anhui 230601 China
| | - Chao Pei
- Institute of Organic Chemistry, RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Qian Li
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, College of Chemistry & Chemical Engineering, Anhui University Hefei Anhui 230601 China
| | - Lei Li
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, College of Chemistry & Chemical Engineering, Anhui University Hefei Anhui 230601 China
| | - Rene M Koenigs
- Institute of Organic Chemistry, RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Jun Xuan
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, College of Chemistry & Chemical Engineering, Anhui University Hefei Anhui 230601 China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, (Anhui University), Ministry of Education Hefei Anhui 230601 China
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6
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Peng CC, Long F, Zhang KY, Hu YC, Wu LJ. Copper(I)-Catalyzed Cross-Coupling of Arylsulfonyl Radicals with Diazo Compounds: Assembly of Arylsulfones. J Org Chem 2022; 87:12265-12273. [PMID: 36037316 DOI: 10.1021/acs.joc.2c01443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel copper-catalyzed cross-coupling of arylsulfonyl radicals with diazo compounds is described for the synthesis of various arylsulfones under mild conditions. In this reaction, the cheap, environmentally friendly, and readily available inorganic K2S2O5 is employed as the sulfur dioxide source for providing arylsulfonyl radicals. In addition, a radical mechanism involving the insertion of sulfur dioxide with aryl radicals followed by the coupling of arylsulfonyl radicals with copper carbenes is proposed.
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Affiliation(s)
- Chuan-Chong Peng
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Fang Long
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China.,Department of Hunan Cuisine, ChangSha Commerce & Tourism College, Changsha 410116, China
| | - Kai-Yi Zhang
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Yun-Chu Hu
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Li-Jun Wu
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China.,Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
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7
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Chen R, Ma G, Li Y, Zhang J, Xia R, Wang KK, Liu L. TBAI-Catalyzed S-H and N-H Insertion Reactions of α-Diazoesters with Thiophenols and Amines under Metal-Free Conditions. J Org Chem 2022; 87:10990-10999. [PMID: 35916386 DOI: 10.1021/acs.joc.2c01262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mild, convenient, and effective TBAI-catalyzed S-H and N-H insertion reactions of α-diazoesters with thiophenols and aromatic amines under metal-free conditions have been described, furnishing a straightforward and general platform for the synthesis of various thioethers and 2-amino-2-oxoacetates in moderate to excellent yields. Moreover, this strategy features simple operation, mild conditions, broad substrate scope, and easy scale-up.
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Affiliation(s)
- Rongxiang Chen
- School of Pharmacy, Xinxiang University, Xinxiang 453003, P.R. China
| | - Guoyang Ma
- School of Chemistry and Materials Engineering, Xinxiang University, Xinxiang 453003, P.R. China
| | - Yawen Li
- School of Pharmacy, Xinxiang University, Xinxiang 453003, P.R. China
| | - Jinju Zhang
- School of Pharmacy, Xinxiang University, Xinxiang 453003, P.R. China
| | - Ran Xia
- School of Pharmacy, Xinxiang University, Xinxiang 453003, P.R. China
| | - Kai-Kai Wang
- School of Pharmacy, Xinxiang University, Xinxiang 453003, P.R. China
| | - Lantao Liu
- College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000, P. R. China
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8
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Wan J, Yu W, Wang T, Luo J. Synthesis of sulfone derivatives via palladium-catalyzed cross-coupling of benzyl trimethylammonium triflates and sulfonyl hydrazides. PHOSPHORUS SULFUR 2022. [DOI: 10.1080/10426507.2021.2016758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Juelin Wan
- Jiangxi Province Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi, China
| | - Weijie Yu
- Jiangxi Province Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi, China
| | - Tao Wang
- Jiangxi Province Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi, China
| | - Jin Luo
- Analytical and Testing Center, Jiangxi Normal University, Nanchang, Jiangxi, China
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9
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Fang Y, Xu D, Yu Y, Tang R, Dai S, Wang Z, Zhang W. Controlled Synthesis of β‐keto Sulfones and Vinyl Sulfones under Electrochemical Oxidation. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yang Fang
- Anhui Normal University College of Chemistry and Materials Science Wuhu CHINA
| | - Dongping Xu
- Anhui Normal University College of Chemistry and Materials Science Wuhu CHINA
| | - Yingliang Yu
- Anhui Normal University College of Chemistry and Materials Science Wuhu CHINA
| | - Rumeng Tang
- Anhui Normal University College of Chemistry and Materials Science Wuhu CHINA
| | - Shuaishuai Dai
- Anhui Normal University College of Chemistry and Materials Science Wuhu CHINA
| | - Zhenghua Wang
- Anhui Normal University College of Chemistry and Materials Science Wuhu CHINA
| | - Wu Zhang
- Anhui Normal University College of Chemistry and Materials Science 1 Beijing Eastroad 241000 Wuhu CHINA
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10
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Das S, Roy S, Bhowmik A, Sarkar W, Mondal I, Mishra A, Saha SJ, Karmakar S, Deb I. A radical-radical cross-coupling reaction of xanthene with sulfonyl hydrazides: facile access to xanthen-9-sulfone derivatives. Chem Commun (Camb) 2022; 58:2902-2905. [PMID: 35137745 DOI: 10.1039/d1cc07143b] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A straightforward strategy for direct incorporation of sulfonyl units into a xanthene moiety for accessing xanthen-9-sulfone derivatives in good to excellent yields has been established via metal-free radical-radical cross-coupling reaction of xanthenes and sulfonyl hydrazides. Using easily accessible starting materials, this methodology proceeds efficiently with a high degree of functional group compatibility and with a wide scope of both xanthenes and sulfonyl hydrazides under operationally simple reaction conditions. Mechanistic investigations revealed that sulfonyl radicals could be generated from sulfonyl hydrazides in the presence of TBHP under an oxygen atmosphere.
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Affiliation(s)
- Sumit Das
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Shantonu Roy
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
| | - Arup Bhowmik
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
| | - Writhabrata Sarkar
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
| | - Imtiaj Mondal
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
| | - Aniket Mishra
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
| | - Shubhra Jyoti Saha
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
| | - Sudip Karmakar
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
| | - Indubhusan Deb
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
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11
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Zhang J, Chen J, Zhai Y, Yu J, Pan C. Three‐Component Vicinal Sulfonamination of Alkynes toward 3‐Sulfonylindoles via the Insertion of Sulfur Dioxide. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jie Zhang
- School of Petrochemical Engineering Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology Changzhou University Changzhou 213164 P. R. China
| | - Jian Chen
- Jiangsu LtestingTechnology Co., Ltd. Wuxi 214142 P. R. China
| | - Yongheng Zhai
- Jiangsu LtestingTechnology Co., Ltd. Wuxi 214142 P. R. China
| | - Jin‐Tao Yu
- School of Petrochemical Engineering Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology Changzhou University Changzhou 213164 P. R. China
| | - Changduo Pan
- School of Petrochemical Engineering Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology Changzhou University Changzhou 213164 P. R. China
- School of Chemical and Environmental Engineering Jiangsu University of Technology Changzhou 213001 P. R. China
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12
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Wang Y, Zhao Y, Cai C, Wang L, Gong H. Dioxygen-Triggered Oxosulfonylation/Sulfonylation of Terminal Olefins toward β-Keto Sulfones/Sulfones. Org Lett 2021; 23:8296-8301. [PMID: 34664970 DOI: 10.1021/acs.orglett.1c03049] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A dioxygen-triggered oxosulfonylation/sulfonylation of unactivated olefins to achieve β-keto sulfones/sulfones has been developed. Interestingly, pluralistic mechanisms were found when different types of compounds were applied as substrates, and different products were achieved. The reaction is carried out with a high atomic efficiency in the absence of a metal and a catalyst at room temperature under an air atmosphere. Importantly, as a proof-of-concept, a bioactive molecule was synthesized on a gram-scale level using this method.
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Affiliation(s)
- Yanjie Wang
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Yuhan Zhao
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Changqun Cai
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Lingyun Wang
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.,School of Materials Science and Engineering, Hunan Institute of Technology, Hengyang 421002, China
| | - Hang Gong
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
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13
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Patel BK, Sahoo AK, Dahiya A, Rakshit A. The Renaissance of Alkali Metabisulfites as SO2 Surrogates. SYNOPEN 2021. [DOI: 10.1055/a-1577-9755] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
AbstractThe upsurge of interest in the development of methodologies for the construction of sulfur-containing compounds via the use of expedient reagents has established sustainable tools in organic chemistry. This review focuses on sulfonylation reactions using inorganic sulfites (Na2S2O5 or K2S2O5) as the sulfur dioxide surrogates. Compared to the bis-adduct with DABCO, which is an excellent surrogate of gaseous SO2, the use of sodium or potassium metabisulfites as SO2 surrogates are equally efficient. The objective of the current review is to exemplify recent sulfonylation reactions using inorganic sulfites. For better understanding, the review is categorized according to the mode of reactions: transition-metal-catalyzed SO2 insertion, metal-free SO2 insertion, and visible-light-mediated SO2 insertion. All the reactions in each of the sections are illustrated with selected examples with a pertinent explanation of the proposed mechanism.1 Introduction2 Outlines of the Reactions Involving SO2 Insertion2.1 Transition-Metal-Catalyzed SO2 Insertion2.2 Transition-Metal-Free SO2 Insertion2.3 Visible-Light-Mediated SO2 Insertion3 Conclusion and Outlook
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14
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Zhang X, Lu D, Wang Z. Electrochemical Induced Regio‐ and Stereoselective Difunctionalization of Alkynes: The Synthesis of (
E
)‐β‐Iodovinyl Sulfones. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100505] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Xinghua Zhang
- School of Chemical and Environmental Engineering Shanghai Institute of Technology 100 Hai-Quan Road Shanghai 201418 China
- Institute of Drug Discovery Technology Ningbo University Ningbo 315211 China
| | - Danna Lu
- School of Chemical and Environmental Engineering Shanghai Institute of Technology 100 Hai-Quan Road Shanghai 201418 China
| | - Zhenwei Wang
- School of Chemical and Environmental Engineering Shanghai Institute of Technology 100 Hai-Quan Road Shanghai 201418 China
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15
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Jannapu Reddy R, Haritha Kumari A, Kumar JJ. Recent advances in the synthesis and applications of β-keto sulfones: new prospects for the synthesis of β-keto thiosulfones. Org Biomol Chem 2021; 19:3087-3118. [PMID: 33885563 DOI: 10.1039/d1ob00111f] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
This review mainly focuses on recent developments in the preparation of β-keto sulfones and their extensive synthetic applications. New prospects for the synthesis of β-keto thiosulfones have also been highlighted. Over the last decade, there has been exponential growth in the direct construction of β-keto sulfones using a wide variety of keto and sulfonyl precursors. Of note, the most promising photoredox transformations and electrochemical synthesis methods of β-keto sulfones are also presented. Moreover, β-keto sulfones are versatile building blocks in organic synthesis due to their three essential functional groups: sulfonyl, carbonyl, and active methylene moieties. The convenient preparation of β-keto sulfones allows the synthesis of many valuable carbocyclic and heterocyclic compounds, and the effortless removal of the sulfonyl moiety via transformations is supported. The chemistry of β-keto sulfones (2013 to present) can be divided into several sections based on the sulfonyl surrogates, and ubiquitous synthetic strategies were systematically outlined.
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Affiliation(s)
- Raju Jannapu Reddy
- Department of Chemistry, University College of Science, Osmania University, Hyderabad 500 007, India.
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16
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Luo M, Ren X, Shen R, Qi C, Zhang Y, Wang H. K
2
S
2
O
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‐Mediated Oxysulfonylation of Vinyl Azides with Sodium Sulfinates to Access β‐Keto Sulfones in Water. ChemistrySelect 2021. [DOI: 10.1002/slct.202100139] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Mengqiang Luo
- School of Chemistry and Chemical Engineering Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing 312000 Zhejiang P. R. China
| | - Xiaorong Ren
- School of Chemistry and Chemical Engineering Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing 312000 Zhejiang P. R. China
| | - Runpu Shen
- School of Chemistry and Chemical Engineering Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing 312000 Zhejiang P. R. China
| | - Chenze Qi
- School of Chemistry and Chemical Engineering Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing 312000 Zhejiang P. R. China
| | - Yaohong Zhang
- School of Chemistry and Chemical Engineering Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing 312000 Zhejiang P. R. China
| | - Hai Wang
- School of life science Shaoxing University Shaoxing 312000 Zhejiang P. R. China
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17
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Synthesis of sulfonylated benzimidazo[2,1-a]isoquinolin-6(5H)-ones via I2O5-induced radical relay addition/cyclization of activated alkenes with sulfonylhydrazides. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152845] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Rong X, Guo J, Hu Z, Huang L, Gu Y, Cai Y, Liang G, Xia Q. Iodine‐Mediated Coupling of Cyclic Amines with Sulfonyl Hydrazides: an Efficient Synthesis of Vinyl Sulfone Derivatives. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001510] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Xiaona Rong
- School of Pharmaceutical Sciences Wenzhou Medical University Wenzhou 325035 P. R. China
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 P. R. China
- Wenzhou Institute University of CAS Wenzhou 325011 China
| | - Jingwen Guo
- School of Pharmaceutical Sciences Wenzhou Medical University Wenzhou 325035 P. R. China
| | - Zheqi Hu
- School of Pharmaceutical Sciences Wenzhou Medical University Wenzhou 325035 P. R. China
| | - Lehao Huang
- School of Pharmaceutical Sciences Wenzhou Medical University Wenzhou 325035 P. R. China
| | - Yugui Gu
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 P. R. China
| | - Yuepiao Cai
- School of Pharmaceutical Sciences Wenzhou Medical University Wenzhou 325035 P. R. China
| | - Guang Liang
- School of Pharmaceutical Sciences Wenzhou Medical University Wenzhou 325035 P. R. China
| | - Qinqin Xia
- School of Pharmaceutical Sciences Wenzhou Medical University Wenzhou 325035 P. R. China
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19
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Zhang G, Fan Q, Wang H, Zhao Y, Ding C. NaHSO
3
‐Mediated Direct Synthesis of Sulfinic Esters from Sulfonyl Hydrazides under Transition‐Metal‐Free Conditions. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001202] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Guofu Zhang
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Qiankun Fan
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Huimin Wang
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Yiyong Zhao
- Zhejiang Ecological Environment Low Carbon Development Center Hangzhou 310012 People's Republic of China
| | - Chengrong Ding
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 People's Republic of China
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20
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Ghosh S, Samanta S, Ghosh AK, Neogi S, Hajra A. Advances in Oxosulfonylation Reaction. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000647] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sumit Ghosh
- Department of Chemistry Visva-Bharati (A Central University) Santiniketan 731235 India
| | - Sadhanendu Samanta
- Department of Chemistry Visva-Bharati (A Central University) Santiniketan 731235 India
| | - Asim Kumar Ghosh
- Department of Chemistry Visva-Bharati (A Central University) Santiniketan 731235 India
| | - Sukanya Neogi
- Department of Chemistry Visva-Bharati (A Central University) Santiniketan 731235 India
| | - Alakananda Hajra
- Department of Chemistry Visva-Bharati (A Central University) Santiniketan 731235 India
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21
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Zhao S, Chen K, Zhang L, Yang W, Huang D. Sulfonyl Hydrazides in Organic Synthesis: A Review of Recent Studies. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000466] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Shuangte Zhao
- Department of ChemistryLishui University Lishui City 323000, Zhejiang Province, P. R. People's Republic of China
| | - Kaijun Chen
- Department of ChemistryLishui University Lishui City 323000, Zhejiang Province, P. R. People's Republic of China
| | - Ling Zhang
- Department of ChemistryLishui University Lishui City 323000, Zhejiang Province, P. R. People's Republic of China
| | - Weiguang Yang
- The Marine Biomedical Research InstituteGuangdong Medical University Zhanjiang 524023, Guangdong Province
| | - Dayun Huang
- Department of ChemistryLishui University Lishui City 323000, Zhejiang Province, P. R. People's Republic of China
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22
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Mulina OM, Zhironkina NV, Paveliev SA, Demchuk DV, Terent’ev AO. Electrochemically Induced Synthesis of Sulfonylated N-Unsubstituted Enamines from Vinyl Azides and Sulfonyl Hydrazides. Org Lett 2020; 22:1818-1824. [DOI: 10.1021/acs.orglett.0c00139] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Olga M. Mulina
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Nataliya V. Zhironkina
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
- D. I. Mendeleev University of Chemical Technology of Russia, 9 Miusskaya Square, 125047 Moscow, Russian Federation
| | - Stanislav A. Paveliev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Dmitry V. Demchuk
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Alexander O. Terent’ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
- D. I. Mendeleev University of Chemical Technology of Russia, 9 Miusskaya Square, 125047 Moscow, Russian Federation
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23
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Wang H, Lian P, Zheng Y, Li J, Wan X. Cross coupling of sulfonyl radicals with silver-based carbenes: a simple approach to β-carbonyl arylsulfones. Org Biomol Chem 2020; 18:2163-2169. [DOI: 10.1039/d0ob00091d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A radical–carbene coupling reaction of sulfonyl radicals and silver-based carbenes has been well established, which provides an efficient approach to various β-carbonyl arylsulfones.
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Affiliation(s)
- Hanghang Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Pengcheng Lian
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Yonggao Zheng
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Jingjing Li
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
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24
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Wagh GD, Autade SB, Kulkarni RV, Akamanchi KG. Sulfated tungstate/dioxygen: a new catalytic system for oxysulfonylation of styrenes to form β-keto sulfones. NEW J CHEM 2020. [DOI: 10.1039/d0nj01763a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A new green cat./O2 oxidation system is mild, safe, heterogeneous, simple to make, stable, noncorrosive, produces N2 as by product, and has an easy to recover–reuse catalyst and wide substrate scope.
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Affiliation(s)
- Ganesh D. Wagh
- Department of Pharmaceutical Sciences and Technology
- Institute of Chemical Technology
- Mumbai 400019
- India
| | - Snehalata B. Autade
- Department of Pharmaceutical Sciences and Technology
- Institute of Chemical Technology
- Mumbai 400019
- India
| | | | - Krishnacharya G. Akamanchi
- Department of Allied Health Sciences
- Shri B. M. Patil Medical College
- Hospital and Research Centre
- BLDE Deemed to be University
- Vijayapur
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25
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Zhao J, Li P, Xu Y, Shi Y, Li F. Nickel-Catalyzed Transformation of Diazoacetates to Alkyl Radicals Using Alcohol as a Hydrogen Source. Org Lett 2019; 21:9386-9390. [DOI: 10.1021/acs.orglett.9b03610] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jingjing Zhao
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Pan Li
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Yaohua Xu
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Yixin Shi
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Fuwei Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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26
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Xiong M, Liang X, Gao Z, Lei A, Pan Y. Synthesis of Isoxazolines and Oxazines by Electrochemical Intermolecular [2 + 1 + n] Annulation: Diazo Compounds Act as Radical Acceptors. Org Lett 2019; 21:9300-9305. [PMID: 31713430 DOI: 10.1021/acs.orglett.9b03306] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Reported herein is an unprecedented synthesis of isoxazolines and oxazines through electrochemical intermolecular annulation of alkenes with tert-butyl nitrite, in which diazo compounds serve as radical acceptors. Notably, [2 + 1 + 2] and [2 + 1 + 3] annulations occur when styrenes and allylbenzenes are used as substrates, respectively. The latter reaction undergoes group migration to form more stable radical, manifesting radical route instead of conventional 1,3-dipolar cycloaddition occurs. Moreover, scale-up experiments suggest the potential application value of these transformations in industry.
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Affiliation(s)
- Mingteng Xiong
- Department of Chemistry , Zhejiang University , Hangzhou 310027 , Zhejiang , P. R. China
| | - Xiao Liang
- Department of Chemistry , Zhejiang University , Hangzhou 310027 , Zhejiang , P. R. China
| | - Zhan Gao
- Department of Chemistry , Zhejiang University , Hangzhou 310027 , Zhejiang , P. R. China
| | - Aiwen Lei
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , P. R. China
| | - Yuanjiang Pan
- Department of Chemistry , Zhejiang University , Hangzhou 310027 , Zhejiang , P. R. China
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27
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Zheng LC, Li L, Duan L, Li YM. FeBr3-catalyzed regioselective intramolecular sulfenoamination of unactivated terminal olefins. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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28
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Meng F, Zhang H, Li J, Chun J, Shi Y, He H, Chen B, Gao Z, Zhu Y. Highly Selective and Switchable Access to Tetrasubstituted Alkenyl Sulfones and Naphthyl Sulfones: 1,4-Aryl Migration versus Cyclization. Org Lett 2019; 21:8537-8542. [DOI: 10.1021/acs.orglett.9b03003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Fei Meng
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Honglin Zhang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Jie Li
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Jianlin Chun
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yun Shi
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Han He
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Bin Chen
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhenbo Gao
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yingguang Zhu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
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29
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Mulina OM, Pirgach DA, Nikishin GI, Terent'ev AO. Switching of Sulfonylation Selectivity by Nature of Solvent and Temperature: The Reaction of β-Dicarbonyl Compounds with Sodium Sulfinates under the Action of Iron-Based Oxidants. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900258] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Olga M. Mulina
- N.D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky Prospekt 119991 Moscow Russian Federation
| | - Dmitry A. Pirgach
- D.I. Mendeleev University of Chemical Technology of Russia; 125047, Moscow Russian Federation
| | - Gennady I. Nikishin
- N.D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky Prospekt 119991 Moscow Russian Federation
| | - Alexander O. Terent'ev
- N.D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky Prospekt 119991 Moscow Russian Federation
- D.I. Mendeleev University of Chemical Technology of Russia; 125047, Moscow Russian Federation
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30
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Fang S, Zhao Y, Li H, Zheng Y, Lian P, Wan X. [3 + 3]-Cycloaddition of α-Diazocarbonyl Compounds and N-Tosylaziridines: Synthesis of Polysubstituted 2H-1,4-Oxazines through Synergetic Catalysis of AgOTf/Cu(OAc)2. Org Lett 2019; 21:2356-2359. [DOI: 10.1021/acs.orglett.9b00632] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shangwen Fang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P.R. China
| | - Yanwei Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P.R. China
| | - Haiyan Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P.R. China
| | - Yonggao Zheng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P.R. China
| | - Pengcheng Lian
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P.R. China
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P.R. China
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31
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Xu ZQ, Zheng LC, Li L, Duan L, Li YM. FeBr3-catalyzed regioselective hydroxysulfenylation of N-allylsulfonamides with sulfonyl hydrazides. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.12.044] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Ye S, Qiu G, Wu J. Inorganic sulfites as the sulfur dioxide surrogates in sulfonylation reactions. Chem Commun (Camb) 2019; 55:1013-1019. [PMID: 30601505 DOI: 10.1039/c8cc09250h] [Citation(s) in RCA: 169] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Recent advances in the sulfonylation reactions by using inorganic sulfites as the source of sulfonyl group are reported. The approaches employing inorganic sulfites as sulfur dioxide surrogates are attractive and promising for the synthesis of sulfonyl compounds since inorganic sulfites are abundant, easily available and cheap. The transformations using inorganic sulfites as the source of sulfonyl group work efficiently, providing diverse sulfonyl compounds including sulfones and sulfonamides. The sulfonylation reactions can be performed under transition metal catalysis or through radical processes under catalyst- and additive-free conditions. In some cases, a photocatalyst is employed under visible-light irradiation to facilitate the transformation. For the sulfur dioxide surrogate of inorganic sulfites, potassium metabisulfite or sodium metabisulfite has been broadly used in various transformations. However, the reactivities of inorganic sulfites in organic reactions still need to be explored.
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Affiliation(s)
- Shengqing Ye
- School of Pharmaceutical and Chemical Engineering, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, China
| | - Guanyinsheng Qiu
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, China
| | - Jie Wu
- School of Pharmaceutical and Chemical Engineering, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, China and Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China.
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33
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Ma Y, Wang K, Zhang D, Sun P. Solvent Controlled Transformation between Sulfonyl Hydrazides and Alkynes: Divergent Synthesis of Benzo[
b
]thiophene‐1,1‐dioxides and (E)‐β‐iodo Vinylsulfones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801258] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yue Ma
- Artemisinin Research Center and Institute of Chinese Materia MedicaChina Academy of Chinese Medical Sciences Beijing 100700 People's Republic of China
| | - Kun Wang
- Artemisinin Research Center and Institute of Chinese Materia MedicaChina Academy of Chinese Medical Sciences Beijing 100700 People's Republic of China
| | - Dong Zhang
- Artemisinin Research Center and Institute of Chinese Materia MedicaChina Academy of Chinese Medical Sciences Beijing 100700 People's Republic of China
| | - Peng Sun
- Artemisinin Research Center and Institute of Chinese Materia MedicaChina Academy of Chinese Medical Sciences Beijing 100700 People's Republic of China
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34
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Deng S, Liang E, Wu Y, Tang X. Efficient sulfonylation of ketones with sodium sulfinates for the synthesis of β-keto sulfones. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.049] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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35
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Kim YJ, Choo MH, Kim DY. Potassium iodide-mediated radical arylsulfonylation/1,2-carbon migration sequences for the synthesis of β-sulfonated cyclic ketones. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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36
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Tang Y, Chen Y, Liu H, Guo M. Metal-free TBAI-catalyzed oxidative Csp3S bond formation through Csp2Csp2 bond and S N bond cleavage: A new route to β-keto-Sulfones. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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37
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Chen R, Ogunlana AA, Fang S, Long W, Sun H, Bao X, Wan X. In situ generation of nitrile oxides from copper carbene and tert-butyl nitrite: synthesis of fully substituted isoxazoles. Org Biomol Chem 2018; 16:4683-4687. [PMID: 29892743 DOI: 10.1039/c8ob01067f] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Herein, we present a novel [3 + 2] cycloaddition reaction of β-keto esters with nitrile oxides, which were generated in situ from copper carbene and tert-butyl nitrite. This three-component reaction provides new methodology for the direct synthesis of fully substituted isoxazole derivatives, featuring mild reaction conditions, readily accessible starting materials and simple operation. The experimental studies and DFT calculations suggest that the reaction starts with the generation of the key intermediate nitrile oxides, followed by a [3 + 2] cycloaddition reaction of β-keto esters to give the final isoxazole products.
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Affiliation(s)
- Rongxiang Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Abosede Adejoke Ogunlana
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Shangwen Fang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Wenhao Long
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Hongmei Sun
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Xiaoguang Bao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
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38
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Liu L, Sun K, Su L, Dong J, Cheng L, Zhu X, Au CT, Zhou Y, Yin SF. Palladium-Catalyzed Regio- and Stereoselective Coupling–Addition of Propiolates with Arylsulfonyl Hydrazides: A Pattern for Difunctionalization of Alkynes. Org Lett 2018; 20:4023-4027. [DOI: 10.1021/acs.orglett.8b01585] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lixin Liu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Kang Sun
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Lebin Su
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Jianyu Dong
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Lei Cheng
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Xiaodong Zhu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Chak-Tong Au
- College of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
| | - Yongbo Zhou
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Shuang-Feng Yin
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
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39
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Ni J, Xue Y, Sun L, Zhang A. Cu-Mediated Sulfonyl Radical-Enabled 5-exo-trig Cyclization of Alkenyl Aldehydes: Access to Sulfonylmethyl 1H-Indenes. J Org Chem 2018; 83:4598-4605. [DOI: 10.1021/acs.joc.8b00341] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jiabin Ni
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai 201203, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yu Xue
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai 201203, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai 201203, China
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Liping Sun
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Ao Zhang
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai 201203, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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40
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Aegurla B, Peddinti RK. Metal‐Free Sulfonylation of α,β‐Conjugated Systems by Using Sulfonyl Hydrazides. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201700696] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Balakrishna Aegurla
- Department of ChemistryIndian Institute of Technology Roorkee Roorkee 247 667 Uttarakhand India
| | - Rama Krishna Peddinti
- Department of ChemistryIndian Institute of Technology Roorkee Roorkee 247 667 Uttarakhand India
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41
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Li H, Zhao Y, Ma L, Ma M, Jiang J, Wan X. Radical-carbene coupling reaction: Mn-catalyzed synthesis of indoles from aromatic amines and diazo compounds. Chem Commun (Camb) 2018; 53:5993-5996. [PMID: 28513648 DOI: 10.1039/c7cc02440a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An unprecedented coupling reaction between aromatic amines and diazo compounds was well developed, which afforded a bridge connecting between radical chemistry and metal carbene chemistry. This Mn-catalyzed tandem reaction also provided a fundamentally different and practical approach to the indole skeleton under mild conditions.
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Affiliation(s)
- Huihuang Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China.
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42
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Synthesis of Sulfonated 5-Aminopyrazoles by I2
/Benzoyl Peroxide-Mediated Tandem Reaction. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701201] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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43
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Gong X, Chen J, Lai L, Cheng J, Sun J, Wu J. Benzylic C(sp3)–H bond sulfonylation of 4-methylphenols with the insertion of sulfur dioxide under photocatalysis. Chem Commun (Camb) 2018; 54:11172-11175. [DOI: 10.1039/c8cc06567e] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Sulfonylation of the benzylic C–H bond is developed through a three-component reaction of aryldiazonium tetrafluoroborates, 4-methylphenols and sodium metabisulfite (Na2S2O5). The inorganic sulfite of sodium metabisulfite is used as the SO2 surrogate.
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Affiliation(s)
- Xinxing Gong
- Department of Chemistry
- Fudan University
- Shanghai 200438
- China
| | - Jiahao Chen
- Department of Chemistry
- Fudan University
- Shanghai 200438
- China
| | - Lifang Lai
- School of Petrochemical Engineering, and Jiangsu Province Key Laboratory of Fine Petrochemical Engineering
- Changzhou University
- Changzhou 213164
- China
| | - Jiang Cheng
- School of Petrochemical Engineering, and Jiangsu Province Key Laboratory of Fine Petrochemical Engineering
- Changzhou University
- Changzhou 213164
- China
| | - Jiangtao Sun
- School of Petrochemical Engineering, and Jiangsu Province Key Laboratory of Fine Petrochemical Engineering
- Changzhou University
- Changzhou 213164
- China
| | - Jie Wu
- Department of Chemistry
- Fudan University
- Shanghai 200438
- China
- State Key Laboratory of Organometallic Chemistry
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44
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Chen R, Zhao Y, Fang S, Long W, Sun H, Wan X. Coupling Reaction of Cu-Based Carbene and Nitroso Radical: A Tandem Reaction To Construct Isoxazolines. Org Lett 2017; 19:5896-5899. [DOI: 10.1021/acs.orglett.7b02885] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Rongxiang Chen
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Yanwei Zhao
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Shangwen Fang
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Wenhao Long
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Hongmei Sun
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xiaobing Wan
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
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45
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Zhu XY, Li M, Han YP, Chen S, Li XS, Liang YM. Copper-Catalyzed Oxidative Cyclization of Alkynes with Sulfonylhydrazides Leading to 2-Sulfonated 9H-pyrrolo[1,2-a]indol-9-ones. J Org Chem 2017; 82:8761-8768. [DOI: 10.1021/acs.joc.7b01497] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Xin-Yu Zhu
- State Key Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Ming Li
- State Key Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Ya-Ping Han
- State Key Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Si Chen
- State Key Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xue-Song Li
- State Key Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yong-Min Liang
- State Key Laboratory of Applied
Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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46
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Yang X, Zhao L, Yuan B, Qi Z, Yan R. TBAI/K2S2O8Initiated Radical Cyclization to Synthesizeβ- Arylsulfonyl Naphthalenes from Homopropargylic Alcohols and Sulfonyl Hydrazides. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700634] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaodong Yang
- State Key Laboratory of Applied Organic Chemistry; Key laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; Lanzhou, Gansu People's Republic of China
| | - Lianbiao Zhao
- College of Chemical Engineering; Northwest University for Nationalities; Lanzhou, Gansu People's Republic of China China
| | - Bingxiang Yuan
- State Key Laboratory of Applied Organic Chemistry; Key laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; Lanzhou, Gansu People's Republic of China
| | - Zhenjie Qi
- State Key Laboratory of Applied Organic Chemistry; Key laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; Lanzhou, Gansu People's Republic of China
| | - Rulong Yan
- State Key Laboratory of Applied Organic Chemistry; Key laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Department of Chemistry; Lanzhou University; Lanzhou, Gansu People's Republic of China
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47
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Huang J, Li L, Chen H, Xiao T, He Y, Zhou L. Silver-catalyzed geminal aminofluorination of diazoketones with anilines and N-fluorobenzenesulphonimide. Org Chem Front 2017. [DOI: 10.1039/c6qo00813e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A silver-catalyzed three-component reaction of diazoketones, anilines and NFSI is developed. The reaction provides a new method for gem-aminofluorination of acceptor diazo compounds with aniline as the nitrogen source and NFSI as the fluorine source.
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Affiliation(s)
- Jun Huang
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- China
| | - Linyong Li
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- China
| | - Haoguo Chen
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- China
| | - Tiebo Xiao
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- China
| | - Yuwei He
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- China
| | - Lei Zhou
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- China
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48
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Meesin J, Pohmakotr M, Reutrakul V, Soorukram D, Leowanawat P, Kuhakarn C. Synthesis of N-alkyl-3-sulfonylindoles and N-alkyl-3-sulfanylindoles by cascade annulation of 2-alkynyl-N,N-dialkylanilines. Org Biomol Chem 2017; 15:3662-3669. [DOI: 10.1039/c7ob00366h] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Divergent synthesis of N-alkyl-3-sulfonylindoles and N-alkyl-3-sulfanylindoles from 2-alkynyl-N,N-dialkylanilines and sulfonyl hydrazides has been described.
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Affiliation(s)
- Jatuporn Meesin
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Faculty of Science
- Mahidol University
- Bangkok 10400
- Thailand
| | - Manat Pohmakotr
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Faculty of Science
- Mahidol University
- Bangkok 10400
- Thailand
| | - Vichai Reutrakul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Faculty of Science
- Mahidol University
- Bangkok 10400
- Thailand
| | - Darunee Soorukram
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Faculty of Science
- Mahidol University
- Bangkok 10400
- Thailand
| | - Pawaret Leowanawat
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Faculty of Science
- Mahidol University
- Bangkok 10400
- Thailand
| | - Chutima Kuhakarn
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Faculty of Science
- Mahidol University
- Bangkok 10400
- Thailand
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49
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Chuang TH, Chen YY, Huang YJ, Chuang CP. Manganese Salts Mediated Free-Radical Arylsulfonation-Cyclization of 2-(2-Alkynylphenyl)aminomaleates. ChemistrySelect 2016. [DOI: 10.1002/slct.201601471] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tsung-Han Chuang
- Department of Chemistry; National Cheng Kung University; 1 University Road Tainan,Taiwan 70101 Republic of China
| | - Ying-Yu Chen
- Department of Chemistry; National Cheng Kung University; 1 University Road Tainan,Taiwan 70101 Republic of China
| | - Yi-Jie Huang
- Department of Chemistry; National Cheng Kung University; 1 University Road Tainan,Taiwan 70101 Republic of China
| | - Che-Ping Chuang
- Department of Chemistry; National Cheng Kung University; 1 University Road Tainan,Taiwan 70101 Republic of China
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