1
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Huang XL, Zhang DL, Li Q, Xie ZB, Le ZG, Zhu ZQ. Visible-Light-Induced C-H Cyanoalkylation of Azauracils with Cycloketone Oxime Esters via Catalytic EDA Complex. Org Lett 2024; 26:3727-3732. [PMID: 38678575 DOI: 10.1021/acs.orglett.4c00742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Photoexcitation electron donor-acceptor (EDA) complexes provide an effective approach to produce radicals under mild conditions, while the catalytic version of EDA complex photoactivation remains scarce. Herein, we report a visible-light-induced organophotocatalytic pathway for the cyanoalkylation of azauracils using inexpensive and readily available 1,4-diazabicyclo[2.2.2]octane (DABCO) as a catalytic electron donor. This synthetic method exhibits exceptional compatibility with various functional groups and presents 34 examples in high yields. The efficient cyanoalkylation offers an environmentally friendly and sustainable route toward enhancing the structural and functional diversity of azauracils.
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Affiliation(s)
- Xiao-Long Huang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China
| | - Dong-Liang Zhang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China
| | - Qing Li
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China
| | - Zong-Bo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China
| | - Zhang-Gao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China
| | - Zhi-Qiang Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China
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2
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Zhong T, Zhu H, Zheng Y, Ren G, Xie X, Fan Q, Xie Z, Le ZG. Lead-free Cs 2AgBiBr 6 double perovskite microcrystals for effective visible-light photocatalytic thio/selenocyanation. Chem Commun (Camb) 2024; 60:4230-4233. [PMID: 38526583 DOI: 10.1039/d3cc06087j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Lead-free perovskite microcrystals (MCs) have been regarded as promising potential photocatalysts, owing to their high molar extinction coefficient, low economic cost, adjustable light absorption range, and ample surface-active sites. Herein, C-3 thio/selenocyanation of indoles is demonstrated in high selectivity and yield by using lead-free double perovskite Cs2AgBiBr6 MCs under visible light irradiation. Moreover, the photocatalyst can be recycled at least 5 times without a significant decrease in catalytic activity.
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Affiliation(s)
- Ting Zhong
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Haibo Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Yeye Zheng
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Gaowen Ren
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Xinmei Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Qiangwen Fan
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Zongbo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Zhang-Gao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
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3
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Zhang DL, Le ZG, Li Q, Xie ZB, Yang WW, Zhu ZQ. Visible-light-driven EDA complex-promoted cascade cyclization to construct 4-cyanoalkyl isoquinoline-1,3-diones. Chem Commun (Camb) 2024; 60:2958-2961. [PMID: 38375889 DOI: 10.1039/d4cc00092g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Visible-light-induced EDA complex-promoted ring-opening of cycloketone oxime esters to synthesise various cyanoalkylated products with N-methacryloyl benzamides was developed. Various radical receptors were compatible with the current reaction system to furnish diverse heterocyclic compounds. Mechanistic analysis shows that the formation of an EDA complex was crucial to the photocatalytic strategy. Importantly, 4-cyanoalkyl isoquinoline-1,3-diones were obtained in high yields by using a catalytic amount of 1,4-diazabicyclo[2.2.2]octane (DABCO) through prolonging the reaction time, which provided a practical approach to give a variety of isoquinoline-1,3-dione derivatives.
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Affiliation(s)
- Dong-Liang Zhang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Material Science, East China University of Technology, Nanchang, 330013, Jiangxi, China.
| | - Zhang-Gao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Material Science, East China University of Technology, Nanchang, 330013, Jiangxi, China.
| | - Qing Li
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Material Science, East China University of Technology, Nanchang, 330013, Jiangxi, China.
| | - Zong-Bo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Material Science, East China University of Technology, Nanchang, 330013, Jiangxi, China.
| | - Wen-Wen Yang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Material Science, East China University of Technology, Nanchang, 330013, Jiangxi, China.
| | - Zhi-Qiang Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Material Science, East China University of Technology, Nanchang, 330013, Jiangxi, China.
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4
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Yang Y, Zhu H, Gong B, Yang H, Fan Q, Le ZG, Xie Z. Neutral nickel-catalyzed dehydrosulfonylation of unactivated allylic alcohols under mild conditions. Chem Commun (Camb) 2024; 60:2516-2519. [PMID: 38324066 DOI: 10.1039/d3cc06036e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Allyl sulfones are important sulfur-containing compounds that have widespread applications in organic synthesis, medicinal chemistry and materials science. Herein, nickel-catalysed dehydrosulfonylation of unactivated allyl alcohols with aryl sulfonyl hydrazides without additional active agents under mild conditions was developed. A variety of functional allyl sulfones could be efficiently synthesized in the presence of air-stable Ni(acac)2 as the catalyst and 1,1'-bis(diphenylphosphino)ferrocene (DPPF) as the ligand.
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Affiliation(s)
- Yahui Yang
- School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China.
| | - Haibo Zhu
- School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China.
| | - Bozhen Gong
- School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China.
| | - Hong Yang
- School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China.
| | - Qiangwen Fan
- School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China.
| | - Zhang-Gao Le
- School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China.
| | - Zongbo Xie
- School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China.
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5
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Li Q, Zhu ZQ, Zhang WY, Le ZG, Xie ZB. Visible-light-induced decarboxylative cascade cyclization of acryloylbenzamides with N-hydroxyphthalimide esters via EDA complexes. Org Biomol Chem 2024; 22:965-969. [PMID: 38205855 DOI: 10.1039/d3ob01970e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
A visible-light-induced decarboxylative cascade reaction of acryloylbenzamides with alkyl N-hydroxyphthalimide (NHP) esters for the synthesis of various 4-alkyl isoquinolinediones mediated by triphenylphosphine (PPh3) and sodium iodide (NaI) was developed. This operationally simple protocol proceeded via the photoactivation of electron donor-acceptor (EDA) complexes between N-hydroxyphthalimide esters and NaI/PPh3, resulting in multiple carbon-carbon bond formations without the use of precious metal complexes or synthetically elaborate organic dyes, which provided an alternative practical approach to synthesize diverse isoquinoline-1,3(2H,4H)-dione derivatives.
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Affiliation(s)
- Qing Li
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Material Science, East China University of Technology, Nanchang, 330013, Jiangxi, China.
| | - Zhi-Qiang Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Material Science, East China University of Technology, Nanchang, 330013, Jiangxi, China.
| | - Wen-Yi Zhang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Material Science, East China University of Technology, Nanchang, 330013, Jiangxi, China.
| | - Zhang-Gao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Material Science, East China University of Technology, Nanchang, 330013, Jiangxi, China.
| | - Zong-Bo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Material Science, East China University of Technology, Nanchang, 330013, Jiangxi, China.
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6
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Zhu ZQ, Hu JY, Xie ZB, Le ZG. Visible-light-enabled cascade cross-dehydrogenative-coupling/cyclization to construct α-chromone substituted α-amino acid derivatives. Chem Commun (Camb) 2023; 60:106-109. [PMID: 38032358 DOI: 10.1039/d3cc04107g] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Organophotocatalytic cascade cross-dehydrogenative-coupling/cyclization reaction of o-hydroxyarylenaminones with α-amino acid derivatives for the construction of α-chromone substituted α-amino acid derivatives was developed. Various N-arylglycine esters, amides and dipeptides underwent the cascade cyclization reaction well with o-hydroxyarylenaminones to afford the corresponding 3-aminoalkyl chromones in good to excellent yields. This approach consists of visible-light-promoted oxidation of α-amino acid derivatives, the Mannich reaction, and intramolecular nucleophilic cyclization under acidic conditions, and features a wide reaction scope, a simple operation and mild reaction conditions, which may have the potential to be used for the synthesis of bioactive molecules.
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Affiliation(s)
- Zhi-Qiang Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China.
| | - Jia-Yu Hu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China.
| | - Zong-Bo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China.
| | - Zhang-Gao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry and Materials Science, East China University of Technology, Nanchang, 330013, China.
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7
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Zhu H, Zhang Y, Ren G, Wang Y, Meng J, Fan Q, Xie Z, Le ZG. Nickel-catalyzed sulfonylative coupling of 2-chlorobenzothiazoles with sulfinates at room temperature. Chem Commun (Camb) 2023; 59:1050-1053. [PMID: 36602378 DOI: 10.1039/d2cc06107d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An efficient nickel-catalyzed cross-coupling for the synthesis of 2-sulfonylthiazoles from readily available 2-chlorobenzothiazoles and sodium sulfinates has been developed. A variety of 2-chlorobenzothiazoles and sulfinates having a diverse range of substitution patterns can undergo the coupling process successfully at room temperature. Avoiding the use of precious catalysts and sensitive ligands, moderate to excellent yields of various 2-sulfonylthiazoles were observed.
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Affiliation(s)
- Haibo Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Yingying Zhang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Gaowen Ren
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Yaoqi Wang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Jia Meng
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Qiangwen Fan
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Zongbo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Zhang-Gao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
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8
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Abstract
Herein, we reported a practical and efficient strategy combining photoredox and enzyme catalysis for the construction of 3-aminoalkyl chromones from o-hydroxyaryl enaminones and N-arylglycine esters. A variety of 3-aminoalkyl chromones were synthesized with good yields under mild conditions in one pot. This synthetic protocol consists of sequential enzymatic hydrolysis and photoredox decarboxylation of N-arylglycine esters, oxidation of aminoalkyl radicals, Mannich reaction, and intramolecular nucleophilic cyclization, which affords a convenient pathway for the preparation of various 3-substituted chromones.
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Affiliation(s)
- Jia-Yu Hu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Material Science, East China University of Technology, Nanchang 330013, PR China
| | - Zong-Bo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Material Science, East China University of Technology, Nanchang 330013, PR China
| | - Juan Tang
- Ministry of Education Key Laboratory of Functional Small Organic Molecule, Department of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, PR China
| | - Zhang-Gao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Material Science, East China University of Technology, Nanchang 330013, PR China
| | - Zhi-Qiang Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Material Science, East China University of Technology, Nanchang 330013, PR China
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9
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Li Q, Zhu H, Yang L, Meng J, Xie Z, Le ZG. Transition‐Metal Free C(sp3)‐H Sulfonylation for the Synthesis of 2‐Sulfolmethyl Quinolines from 2‐Methylquinolines and Sulfonyl Hydrazides. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Qian Li
- East China University of Technology School of Chemistry, Biology and Material Science No.418,Guanglan Avenue,Changbei Economic and Technological Development Zone,Nanc 330013 NanChang CHINA
| | - Haibo Zhu
- East China University of Technology School of Chemistry, Biology and Material Science No.418,Guanglan Avenue,Changbei Economic and Technological Development Zone,Nanc 330013 Nangchang CHINA
| | - Liu Yang
- East China University of Technology School of Chemistry, Biology and Material Science No.418,Guanglan Avenue,Changbei Economic and Technological Development Zone,Nanc 330013 Nanchang CHINA
| | - Jia Meng
- East China University of Technology Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Material Science CHINA
| | - Zongbo Xie
- East China University of Technology School of Chemistry, Biology and Material Science 330013 Nanchang CHINA
| | - Zhang-Gao Le
- East China University of Technology School of Chemistry, Biology and Material Science No.418,Guanglan Avenue,Changbei Economic and Technological Development Zone,Nanc 330013 Nanchang CHINA
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10
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Li Q, Zhu H, Liu Y, Yang L, Fan Q, Xie Z, Le ZG. Copper-assisted preparation of pyridinyl sulfonate esters from hydroxypyridines and sodium sulfinates. RSC Adv 2022; 12:2736-2740. [PMID: 35425336 PMCID: PMC8979058 DOI: 10.1039/d1ra08568a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 12/26/2021] [Indexed: 11/21/2022] Open
Abstract
An efficient and powerful copper-assisted method for the effective conversion of a broad range of hydroxypyridines and sodium sulfinates into their corresponding pyridinyl tosylates was developed. Key features of this base- and ligand-free protocol include using the cheap and readily available CuBr2 as a medium and the use of sodium sulfinates as formal sulfonylation reagents. A variety of functional pyridinyl tosylates could be formed with good yields, which can easily be converted into C-C and C-N bond-containing compounds.
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Affiliation(s)
- Qian Li
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Material Science, East China University of Technology 330013 Nanchang China
| | - Haibo Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Material Science, East China University of Technology 330013 Nanchang China .,Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, East China University of Technology Nanchang 330013 China
| | - Yishuai Liu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Material Science, East China University of Technology 330013 Nanchang China
| | - Liu Yang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Material Science, East China University of Technology 330013 Nanchang China
| | - Qiangwen Fan
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Material Science, East China University of Technology 330013 Nanchang China .,Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology Nanchang 330013 China
| | - Zongbo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Material Science, East China University of Technology 330013 Nanchang China
| | - Zhang-Gao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Material Science, East China University of Technology 330013 Nanchang China
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11
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Zhu ZQ, Le ZG, Ji JJ, Xie ZB, Tang J, Yuan E. Highly Efficient Copper-Catalyzed Dehydrogenative Cross-Coupling of Azoles with α-Amino Carbonyl Compounds. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1331-7285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
AbstractA novel and highly efficient dehydrogenative cross-coupling reaction between α-amino carbonyl compounds and azoles by copper catalysis using di-tert-butyl peroxide (DTBP) as an oxidant is described. A diverse range of azoles undergo the dehydrogenative imidoylation smoothly with various α-amino carbonyl compounds for the exclusive formation of the corresponding N-imidoyl azoles in high yields under air. The synthetic method has the advantages of good functional-group tolerance, wide substrate scope, excellent yields, and simple operation, thus providing a convenient and practical protocol for the synthesis of functionalized azoles.
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Affiliation(s)
- Zhi-Qiang Zhu
- Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, East China University of Technology
- School of Chemistry, Biology and Material Science, East China University of Technology
| | - Zhang-Gao Le
- School of Chemistry, Biology and Material Science, East China University of Technology
| | - Jiu-Jian Ji
- School of Chemistry, Biology and Material Science, East China University of Technology
| | - Zong-Bo Xie
- School of Chemistry, Biology and Material Science, East China University of Technology
| | - Juan Tang
- Ministry of Education Key Laboratory of Functional Small Organic Molecule, Department of Chemistry and Chemical Engineering, Jiangxi Normal University
| | - En Yuan
- College of Pharmacy, Jiangxi University of Traditional Chinese Medicine
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12
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Zhu ZQ, Guo D, Ji JJ, Zhu X, Tang J, Xie ZB, Le ZG. Visible-Light-Induced Dehydrogenative Imidoylation of Imidazo[1,2- a]pyridines with α-Amino Acid Derivatives and α-Amino Ketones. J Org Chem 2020; 85:15062-15071. [PMID: 33135893 DOI: 10.1021/acs.joc.0c01940] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new and efficient visible-light-promoted dehydrogenative cross-coupling reaction of imidazo[1,2-a]pyridines with α-amino carbonyl compounds toward imidoyl imidazo[1,2-a]pyridines is developed. A diverse range of imidazo[1,2-a]pyridines undergoes the dehydrogenative imidoylation smoothly with α-amino carbonyl compounds to access the corresponding products in satisfactory yields. We have also proposed the possible reaction mechanism based on preliminary mechanistic studies. The synthetic method has the advantages of wide substrate scope, good functional tolerance, and mild reaction conditions, which make this transformation more practical and sustainable.
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Affiliation(s)
- Zhi-Qiang Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, China
| | - Dong Guo
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, China
| | - Jiu-Jian Ji
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, China
| | - Xiao Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, China
| | - Juan Tang
- Ministry of Education Key Laboratory of Functional Small Organic Molecule, Department of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Zong-Bo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, China
| | - Zhang-Gao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, China
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13
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Xie ZB, Fu LH, Meng J, Lan J, Hu ZY, Le ZG. Efficient biocatalytic strategy for one-pot Biginelli reaction via enhanced specific effects of microwave in a circulating reactor. Bioorg Chem 2020; 101:103949. [PMID: 32531507 DOI: 10.1016/j.bioorg.2020.103949] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 05/12/2020] [Accepted: 05/14/2020] [Indexed: 12/17/2022]
Abstract
A one-pot efficient biocatalytic strategy for the synthesis of 3,4-dihydropyrimidin-2-(1H)-ones was developed in a circulating microwave reactor selecting α-chymotrypsin as the promiscuous biocatalyst. In the circulating reaction system, the combination of microwave heating and external cooling could avoid the denaturation and inactivation of enzyme, and greatly improved the radiation power of microwave, thus improving the specific effects of microwave. During the reaction process, the microwave radiation power was automatically adjusted by adjusting the speed of the reaction mixture circulation. When the microwave power was maintained at 110 W, the best results could be obtained with the highest yield of 96% at 55 °C in 50 min, and the reaction had a wide range of substrates. But no obvious product was detected in a tank microwave reactor at 55 °C for 100 min, under this condition, the microwave power was maintained at about 3 W. As a contrast, the reaction only obtained 63% yield in 55 °C oil bath for 96 h.
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Affiliation(s)
- Zong-Bo Xie
- State Key Laboratory of Nuclear Resources and Environment, School of nuclear science and engineering, East China University of Technology, 418 Guanglan Road, Nanchang 330013, PR China; Department of Applied Chemistry, East China University of Technology, 418 Guanglan Road, Nanchang 330013, PR China.
| | - Lei-Han Fu
- Department of Applied Chemistry, East China University of Technology, 418 Guanglan Road, Nanchang 330013, PR China
| | - Jia Meng
- Department of Applied Chemistry, East China University of Technology, 418 Guanglan Road, Nanchang 330013, PR China
| | - Jin Lan
- Department of Applied Chemistry, East China University of Technology, 418 Guanglan Road, Nanchang 330013, PR China
| | - Zhi-Yu Hu
- Department of Applied Chemistry, East China University of Technology, 418 Guanglan Road, Nanchang 330013, PR China
| | - Zhang-Gao Le
- State Key Laboratory of Nuclear Resources and Environment, School of nuclear science and engineering, East China University of Technology, 418 Guanglan Road, Nanchang 330013, PR China; Department of Applied Chemistry, East China University of Technology, 418 Guanglan Road, Nanchang 330013, PR China.
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14
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Hu Y, Chen ZC, Le ZG, Zheng QG. Organic Reactions in Ionic Liquids: An Efficient Method for the Synthesis of Aryl Sulfones by Alkylation of Sodium Arenesulfinates with Alkyl Halides. Journal of Chemical Research 2019. [DOI: 10.3184/0308234041209086] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An ionic liquid based on 1-butyl-3-methylimidazolium tetrafluoroborate (BmimBF4) is used as a reusable reaction medium for the alkylation of sodium arenesulfinates with alkyl halides. This procedure is convenient, efficient and generally gives rise to the S-alkylated product with high selectivity when applied to active halides.
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Affiliation(s)
- Yi Hu
- Ningbo Institute of Technology Zhejiang University, Ningbo, 315104, P.R. China
- Department of Chemistry, Zhejiang University (Xi Xi Campus), Hangzhou, 310028, P.R. China
| | - Zhen-Chu Chen
- Ningbo Institute of Technology Zhejiang University, Ningbo, 315104, P.R. China
- Department of Chemistry, Zhejiang University (Xi Xi Campus), Hangzhou, 310028, P.R. China
| | - Zhang-Gao Le
- Department of Chemistry, Zhejiang University (Xi Xi Campus), Hangzhou, 310028, P.R. China
| | - Qin-Guo Zheng
- Pharmaceutical Science Research Institute, Aston University, Aston Triangle, Birmingham B4 7ET, UK
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15
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Hu Y, Chen ZC, Le ZG, Zheng QG. Organic reactions in ionic liquids: N-alkylation of cyclic imides with alkyl halides promoted by potassium fluoride. Journal of Chemical Research 2019. [DOI: 10.3184/0308234041209031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An ionic liquid based on 1-butyl-3-methylimidazolium hexafluorophosphate is used as an efficient reusable reaction medium in the N-alkylation of cyclic imides with alkyl halides promoted by fluoride ion.
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Affiliation(s)
- Yi Hu
- Ningbo Institute of Technology Zhejiang University, Ningbo, 315104, P.R. China
- Department of Chemistry, Zhejiang University (Xixi Campus), Hangzhou, 310028, P.R. China
| | - Zhen-Chu Chen
- Ningbo Institute of Technology Zhejiang University, Ningbo, 315104, P.R. China
- Department of Chemistry, Zhejiang University (Xixi Campus), Hangzhou, 310028, P.R. China
| | - Zhang-Gao Le
- Department of Chemistry, Zhejiang University (Xixi Campus), Hangzhou, 310028, P.R. China
| | - Qin-Guo Zheng
- Pharmaceutical Science Research Institute, Aston University, Aston Triangle, Birmingham B4 7ET, UK
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16
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Le ZG, Chen ZC, Hu Y, Zheng QG. Organic Reactions in Ionic Liquids: An Efficient Method for the N-Alkylation of Benzotriazole. Journal of Chemical Research 2019. [DOI: 10.3184/0308234041639656] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The N-alkylation of benzotriazole with alkyl halides proceeds efficiently in the presence of potassium hydroxide in ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim][BF4]).
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Affiliation(s)
- Zhang-Gao Le
- Ningbo Institute of Technology, Zhejiang University, Ningbo, 315100, P. R. China
- Department of Chemistry, Zhejiang University (Xixi campus), Hangzhou, 310028, P. R. China
- Department of Applied Chemistry, East China Institute of Technology, Fuzhou, 344000, P. R. China
| | - Zhen-Chu Chen
- Ningbo Institute of Technology, Zhejiang University, Ningbo, 315100, P. R. China
- Department of Chemistry, Zhejiang University (Xixi campus), Hangzhou, 310028, P. R. China
| | - Yi Hu
- Department of Chemistry, Zhejiang University (Xixi campus), Hangzhou, 310028, P. R. China
| | - Qin-Guo Zheng
- Pharmaceutical Science Reseach Institute, Aston University, Aston Triangle, Birmingham B4 TET, UK
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17
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Zhu H, Shen Y, Wen D, Le ZG, Tu T. Selective Synthesis of ortho-Substituted Diarylsulfones by Using NHC-Au Catalysts under Mild Conditions. Org Lett 2019; 21:974-979. [DOI: 10.1021/acs.orglett.8b03957] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Haibo Zhu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai 200438, China
- School of Chemistry, Biology and Material Science, East China University of Technology, Nanchang 330013, China
| | - Yajing Shen
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Daheng Wen
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Zhang-Gao Le
- School of Chemistry, Biology and Material Science, East China University of Technology, Nanchang 330013, China
| | - Tao Tu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai 200438, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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18
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Ji JJ, Zhu ZQ, Xiao LJ, Guo D, Zhu X, Tang J, Wu J, Xie ZB, Le ZG. Photocatalyst-free decarboxylative aminoalkylation of imidazo[1,2-a]pyridines with N-aryl glycines enabled by visible light. Org Chem Front 2019. [DOI: 10.1039/c9qo00935c] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A novel, green and efficient visible-light-promoted decarboxylative aminoalkylation reaction of imidazo[1,2-a]pyridines with N-aryl glycines has been described.
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Affiliation(s)
- Jiu-Jian Ji
- School of Chemistry
- Biology and Material Science
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Zhi-Qiang Zhu
- School of Chemistry
- Biology and Material Science
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Li-Jin Xiao
- School of Chemistry
- Biology and Material Science
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Dong Guo
- School of Chemistry
- Biology and Material Science
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Xiao Zhu
- School of Chemistry
- Biology and Material Science
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Juan Tang
- Ministry of Education Key Laboratory of Functional Small Organic Molecule
- Department of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Jun Wu
- School of Chemistry
- Biology and Material Science
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Zong-Bo Xie
- School of Chemistry
- Biology and Material Science
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Zhang-Gao Le
- School of Chemistry
- Biology and Material Science
- East China University of Technology
- Nanchang 330013
- P. R. China
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19
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20
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Xie ZB, Le ZG, Fu LH, Chen GQ, Lan J, Hu ZY. An Ionic Liquid-Based Green Synthesis Strategy: Synthesis of Dihydropyrimidinones by Three-Component Biginelli-Type Reaction of Aliphatic Aldehydes, Aromatic Aldehydes and Urea. HETEROCYCLES 2019. [DOI: 10.3987/com-19-14137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Zhu ZQ, Xiao LJ, Guo D, Chen X, Ji JJ, Zhu X, Xie ZB, Le ZG. Cobalt-Catalyzed Oxidative Phosphonylation of α-Amino Acid Derivatives and α-Amino Ketones for α-Aminophosphonates. J Org Chem 2018; 84:435-442. [DOI: 10.1021/acs.joc.8b02680] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Zhu ZQ, Xiao LJ, Zhou CC, Song HL, Xie ZB, Le ZG. A visible-light-promoted cross-dehydrogenative-coupling reaction of N -arylglycine esters with imidazo[1,2- a ]pyridines. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.07.047] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Zhu ZQ, Xie ZB, Le ZG, Xiao LJ, Guo D, Lu Y. Copper-Catalyzed Cross-Dehydrogenative-Coupling Reaction of N-Arylglycine Esters with Imides or Amides for Synthesis of α-Substituted α-Amino Acid Esters. Synlett 2018. [DOI: 10.1055/s-0036-1591586] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
A simple and highly efficient cross-dehydrogenative-coupling (CDC) reaction between N-aryl glycine esters and imides or amides by the catalysis of a copper salt without the requirement of peroxide agents is described. The novel reaction provides a facile approach for the synthesis of α-substituted α-amino acid esters through C–H/N–H oxidative cross-coupling. A possible mechanism for the CDC reaction by using copper as a catalyst and air as the terminal oxidant is also proposed. This synthetic approach has the advantages of good yields, simple operation and mild reaction conditions.
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Affiliation(s)
- Zhi-Qiang Zhu
- State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China University of Technology
- School of Chemistry, Biology and Material Science, East China University of Technology
| | - Zong-Bo Xie
- State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China University of Technology
- School of Chemistry, Biology and Material Science, East China University of Technology
| | - Zhang-Gao Le
- State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China University of Technology
- School of Chemistry, Biology and Material Science, East China University of Technology
| | - Li-Jin Xiao
- School of Chemistry, Biology and Material Science, East China University of Technology
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24
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Zhu ZQ, Le ZG, Xiao LJ, Chen Y, Xie ZB, Zhu HB. A Highly Efficient Copper(II)-Catalyzed Cross-Dehydrogenative-Coupling Reaction of N-Arylglycine Esters with 2-Arylimidazo[1,2-a]pyridines. SYNTHESIS-STUTTGART 2018. [DOI: 10.1055/s-0036-1609845] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
A rapid and highly efficient copper(II)-catalyzed cross-dehydrogenative coupling (CDC) reaction of N-arylglycine esters with imidazo[1,2-a]pyridines has been described. A broad range of N-arylglycine esters underwent the CDC reaction smoothly with 2-arylimidazo[1,2-a]pyridines to give α-substituted α-amino acid esters in excellent yields. This synthetic method has the advantages of high yields, good functional groups compatibility, simple operation, and mild reaction conditions. A possible mechanism for the CDC reaction is also proposed. The use of a copper salt as the catalyst and air as the terminal oxidant makes this transformation sustainable and practical.
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Affiliation(s)
- Zhi-Qiang Zhu
- State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China University of Technology
- School of Chemistry, Biology and Material Science, East China University of Technology
| | - Zhang-Gao Le
- State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China University of Technology
- School of Chemistry, Biology and Material Science, East China University of Technology
| | - Li-Jin Xiao
- School of Chemistry, Biology and Material Science, East China University of Technology
| | - Ying Chen
- School of Chemistry, Biology and Material Science, East China University of Technology
| | - Zong-Bo Xie
- School of Chemistry, Biology and Material Science, East China University of Technology
| | - Hai-Bo Zhu
- School of Chemistry, Biology and Material Science, East China University of Technology
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25
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Xie ZB, Le ZG, Fu LH, Lan J, Liu LS, Li HX. Biginelli Reaction of Aliphatic Aldehydes Catalyzed by α-Chymotrypsin: One-Pot Biocatalytic Synthesis of Dihydropyrimidinones. HETEROCYCLES 2018. [DOI: 10.3987/com-18-13977] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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26
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27
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Chen J, Zhu H, Chen J, Le ZG, Tu T. Synthesis, Characterization and Catalytic Application of Pyridine-Bridged N-Heterocyclic Carbene-Ruthenium Complexes in the Hydrogenation of Carbonates. Chem Asian J 2017; 12:2809-2812. [DOI: 10.1002/asia.201701303] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 09/22/2017] [Indexed: 11/05/2022]
Affiliation(s)
- Jiangbo Chen
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
| | - Haibo Zhu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
- School of Chemistry, Biology and Material Science; East China University of Technology; Nanchang 330013 P.R. China
| | - Jinjin Chen
- Department of Children Healthcare, Shanghai Children Hospital affiliated to Shanghai; Jiaotong University; No.355, Rd.Luding Shanghai 20062 P.R: China
| | - Zhang-Gao Le
- School of Chemistry, Biology and Material Science; East China University of Technology; Nanchang 330013 P.R. China
| | - Tao Tu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P.R. China
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28
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Affiliation(s)
- Haibo Zhu
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 China
| | - Yajing Shen
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 China
| | - Qinyue Deng
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 China
| | - Zhang-Gao Le
- School of Chemistry, Biology and Material Science; East China University of Technology; Nanchang 330013 China
| | - Tao Tu
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; Shanghai 200032 China
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29
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Zhu ZQ, Le ZG, Xie ZB. Dehydrogenative Cross-Coupling Reactions of N-Aryl α-Amino Acid Esters with Nitroalkanes for the Synthesis of β-Nitro α-Amino Acid Esters. Synlett 2016. [DOI: 10.1055/s-0036-1588096] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Zhi-Qiang Zhu
- Jiangxi 2011 Joint Center for Innovative Mass Spectrometry and Instrumentation, East China University of Technology
| | - Zhang-Gao Le
- Jiangxi 2011 Joint Center for Innovative Mass Spectrometry and Instrumentation, East China University of Technology
| | - Zong-Bo Xie
- Jiangxi 2011 Joint Center for Innovative Mass Spectrometry and Instrumentation, East China University of Technology
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30
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Zhu ZQ, Xie ZB, Le ZG. Copper-Catalyzed Aerobic Cascade Oxidative Coupling/Cyclization for the Construction of 1,4-Dihydropyridine Derivatives. J Org Chem 2016; 81:9449-9454. [DOI: 10.1021/acs.joc.6b01736] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhi-Qiang Zhu
- Jiangxi 2011 Joint Center
for the Innovative Mass Spectrometry and
Instrumentation and ‡School of Chemistry, Biology and Material Science, East China University of Technology, Nanchang 330013, P. R. China
| | - Zong-Bo Xie
- Jiangxi 2011 Joint Center
for the Innovative Mass Spectrometry and
Instrumentation and ‡School of Chemistry, Biology and Material Science, East China University of Technology, Nanchang 330013, P. R. China
| | - Zhang-Gao Le
- Jiangxi 2011 Joint Center
for the Innovative Mass Spectrometry and
Instrumentation and ‡School of Chemistry, Biology and Material Science, East China University of Technology, Nanchang 330013, P. R. China
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31
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Xie ZB, Sun DZ, Jiang GF, Le ZG. Facile synthesis of bis(indolyl)methanes catalyzed by α-chymotrypsin. Molecules 2014; 19:19665-77. [PMID: 25438078 PMCID: PMC6271608 DOI: 10.3390/molecules191219665] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 11/20/2014] [Accepted: 11/21/2014] [Indexed: 11/17/2022] Open
Abstract
A mild and efficient method catalyzed by α-chymotrypsin was developed for the synthesis of bis(indolyl)methanes through a cascade process between indole and aromatic aldehydes. In the ethanol aqueous solution, a green medium, a wide range of aromatic aldehydes could react with indole to afford the desired products with moderate to good yields (from 68% to 95%) using a little α-chymotrypsin as catalyst.
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Affiliation(s)
- Zong-Bo Xie
- Department of Applied Chemistry, East China Institute of Technology, Nanchang 330013, China.
| | - Da-Zhao Sun
- Department of Applied Chemistry, East China Institute of Technology, Nanchang 330013, China.
| | - Guo-Fang Jiang
- Department of Applied Chemistry, East China Institute of Technology, Nanchang 330013, China.
| | - Zhang-Gao Le
- Department of Applied Chemistry, East China Institute of Technology, Nanchang 330013, China.
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32
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Xie ZB, Wang N, Wu WX, Le ZG, Yu XQ. Trypsin-catalyzed tandem reaction: One-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones by in situ formed acetaldehyde. J Biotechnol 2014; 170:1-5. [DOI: 10.1016/j.jbiotec.2013.10.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 10/16/2013] [Accepted: 10/25/2013] [Indexed: 10/26/2022]
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33
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34
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Le ZG, Xie ZB, Xu JP. One-pot synthesis of 2-phenylimidazo[1,2-α]pyridines from acetophenone, [Bmim]Br(3) and 2-aminopyridine under solvent-free conditions. Molecules 2012; 17:13368-75. [PMID: 23143149 PMCID: PMC6269035 DOI: 10.3390/molecules171113368] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Revised: 10/24/2012] [Accepted: 10/26/2012] [Indexed: 12/02/2022] Open
Abstract
One-pot synthesis of 2-phenylimidazo[1,2-α]pyridines from acetophenone, [Bmim]Br3 and 2-aminopyridine under solvent-free conditions in the presence of Na2CO3, gave the corresponding 2-phenylimidazo[1,2-α]pyridines in excellent yields ranging from 72% to 89%.
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Affiliation(s)
- Zhang-Gao Le
- Department of Applied Chemistry, East China Institute of Technology, Fuzhou 344000, China.
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35
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Xie ZB, Wang N, Wu MY, He T, Le ZG, Yu XQ. Catalyst-free and solvent-free Michael addition of 1,3-dicarbonyl compounds to nitroalkenes by a grinding method. Beilstein J Org Chem 2012; 8:534-8. [PMID: 22563352 PMCID: PMC3343280 DOI: 10.3762/bjoc.8.61] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Accepted: 03/15/2012] [Indexed: 11/23/2022] Open
Abstract
An environmentally benign, fast and convenient protocol has been developed for the Michael addition of 1,3-dicarbonyl compounds to β-nitroalkenes in good to excellent yields by a grinding method under catalyst- and solvent-free conditions.
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Affiliation(s)
- Zong-Bo Xie
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, China, 610064; ; Tel: (+86) 28-85415886
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36
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Le ZG, Zhong T, Xie ZB, Lü XX, Cao X. Green and Efficient Protocol for N-Alkylation of Benzotriazole Using Basic Ionic Liquid [Bmim]OH as Catalyst Under Solvent-Free Conditions. SYNTHETIC COMMUN 2010. [DOI: 10.1080/00397910903277888] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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37
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Chen AY, Le ZG, Liu G, Pu SZ, Fan CB. 3-(4-{3,3,4,4,5,5-Hexafluoro-2-[5-(3-methoxyphenyl)-2-methyl-3-thienyl]cyclopent-1-enyl}-5-methyl-2-thienyl)benzonitrile. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o2352. [PMID: 21577821 PMCID: PMC2970449 DOI: 10.1107/s1600536809034771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2009] [Accepted: 08/30/2009] [Indexed: 11/19/2022]
Abstract
The title compound, C29H19F6NOS2, is a new unsymmetrical photochromic diarylethene derivative with different meta-phenyl substituents. The distance between the two reactive (i.e. can be irradiated to form a new chemical bond) C atoms is 3.501 (4) Å; the dihedral angles between the mean plane of the main central cyclopentene ring and the thiophene rings are 47.7 (5) and 45.1 (2)°, and those between the thiophene rings and the adjacent benzene rings are 29.4 (2) and 28.4 (3)°. The three C atoms and the F atoms of hexafuorocyclopentene ring are disordered over two positions, with site-occupancy factors of 0.751 (4) and 0.249 (4).
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38
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Le ZG, Xie ZB, Xu JP. One-Pot Synthesis of Phenacyl Esters from Acetophenone, [Bmim]Br3, and Potassium Salts of Carboxylic Acids Under Solvent-Free Conditions. SYNTHETIC COMMUN 2009. [DOI: 10.1080/00397910802431115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Zhang-Gao Le
- a Department of Applied Chemistry , East China Institute of Technology , Fuzhou, China
| | - Zong-Bo Xie
- a Department of Applied Chemistry , East China Institute of Technology , Fuzhou, China
| | - Jian-Ping Xu
- a Department of Applied Chemistry , East China Institute of Technology , Fuzhou, China
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39
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Le ZG, Zhong T, Xie ZB, Xu JP. A Simple N-Substitution of Pyrrole and Indole Using Basic Ionic Liquid [BmIm][OH] as Catalyst and Green Solvent. HETEROCYCLES 2009. [DOI: 10.3987/com-09-11699] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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40
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Li M, Pu SZ, Fan CB, Le ZG. Crystal structure of 3,3,4,4,5,5-hexafluoro-{[1-(2-ethyl-3-benzothienyl)-2- (2-n-heptyl-5-formyl)]-thien-3-yl}-cyclopent-1-ene, C27H26F6OS2. Z KRIST-NEW CRYST ST 2008. [DOI: 10.1524/ncrs.2008.0052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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41
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Li M, Pu SZ, Fan CB, Le ZG. 1,2-Bis[5-(2,2'-dicyano-vinyl)-2-n-pentyl-3-thien-yl]-3,3,4,4,5,5-hexa-fluoro-cyclo-pent-1-ene: a new photochromic diaryl-ethene compound. Acta Crystallogr Sect E Struct Rep Online 2008; 64:o517. [PMID: 21201536 PMCID: PMC2960348 DOI: 10.1107/s160053680800202x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2007] [Accepted: 01/19/2008] [Indexed: 11/14/2022]
Abstract
The title compound, C(31)H(26)F(6)N(4)S(2), is a new photochromic dithienylethene with dicyano-vinyl subsitituents. In the crystal structure, the mol-ecule adopts a photoactive anti-parallel conformation, with two n-pentyl groups located on opposite sides of the cyclo-pentene ring. The cyclo-pentene ring assumes an envelope conformation. The distance between the two reactive C atoms on the thio-phene rings is 3.834 (7) Å. One of the n-pentyl groups is disordered over two positions; the site occupancy factors are ca 0.7 and 0.3.
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Affiliation(s)
- Min Li
- Key Laboratory of Nuclear Resources and Environment of the Ministry of Education, East China Institute of Technology, Fuzhou 344000, People’s Republic of China
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang 330013, People’s Republic of China
| | - Shou-Zhi Pu
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang 330013, People’s Republic of China
| | - Cong-Bin Fan
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang 330013, People’s Republic of China
| | - Zhang-Gao Le
- Key Laboratory of Nuclear Resources and Environment of the Ministry of Education, East China Institute of Technology, Fuzhou 344000, People’s Republic of China
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Le ZG, Chen ZC, Hu Y. (Bmim)Br3 as a New Reagent for Regioselective Monobromination of Phenols and Several Activated Aromatics under Solvent-free Conditions. CHINESE J CHEM 2005. [DOI: 10.1002/cjoc.200591537] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Le ZG, Chen ZC, Hu Y, Zheng QG. Organic reactions in ionic liquids: Ionic liquid-promoted efficient synthesis ofN-alkyl andN-arylphthalimides. J Heterocycl Chem 2005. [DOI: 10.1002/jhet.5570420442] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Chen ZC, Le ZG, Hu Y, Zheng QG. [bmim]Br3 as a New Reagent for Regioselective Monobromination of Arylamines under Solvent-Free Conditions. SYNTHESIS-STUTTGART 2004. [DOI: 10.1055/s-2004-831239] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Chen ZC, Le ZG, Hu Y, Zheng QG. Organic Reactions in Ionic Liquids: A Simple and Highly Regioselective N-Substitution of Pyrrole. SYNTHESIS-STUTTGART 2004. [DOI: 10.1055/s-2004-829182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Chen ZC, Le ZG, Hu Y, Zheng QG. Organic Reactions in Ionic Liquids: A Simple Highly Regioselective or Regiospecific Substitutions of Benzotriazole. HETEROCYCLES 2004. [DOI: 10.3987/com-04-10010] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Chen ZC, Le ZG, Hu Y, Zheng QG. Organic Reactions in Ionic Liquids: Ionic Liquid-Promoted Efficient Synthesis ofN-Alkyl andN-Arylimides. SYNTHESIS-STUTTGART 2004. [DOI: 10.1055/s-2004-822337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Chen ZC, Le ZG, Hu Y, Zheng QG. Organic Reactions in Ionic liquids: N-Alkylation of Phthalimide and Several Nitrogen Heterocycles. SYNTHESIS-STUTTGART 2004. [DOI: 10.1055/s-2003-44383] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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