1
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Kitzinger KM, Giordano MT, de Jesús Cruz P, Johnson JS. Diastereoselective (3 + 3)-Annulations of Trisubstituted Michael Acceptors for Access to Polyfunctional Cyclohexanones. J Org Chem 2024; 89:5878-5882. [PMID: 38501591 DOI: 10.1021/acs.joc.4c00157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Michael-aldol domino reactions are powerful tools for rapidly assembling carbocyclic scaffolds. We herein disclose a base-catalyzed Michael-aldol domino reaction of trisubstituted Michael acceptors with β-keto ester nucleophiles. The cyclohexanone products are obtained in excellent diastereoselectivity (up to >20:1 dr) and good yields (up to 84%). An attractive practical consideration is that pure products are isolated directly via filtration of the unpurified reaction mixtures. Further functionalization of the cyclohexanones is achieved without perturbation of stereocenters installed through the preceding annulation.
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Affiliation(s)
- Katelyn M Kitzinger
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Mitchell T Giordano
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Pedro de Jesús Cruz
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Jeffrey S Johnson
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
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2
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Patel PN, Talati KS, Deshmukh AG, Desai DH, Patel NC. Secondary Amine Catalysed Diastereoselective Cross Domino Reaction: Simple and Efficient Synthesis of Heteroaryl-Substituted Cyclohexanols. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222040107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Nagaraju S, Sathish K, Kashinath D. Applications of 3,5‐Dialkyl‐4‐nitroisoxazoles and Their Derivatives in Organic Synthesis
#. ChemistrySelect 2021. [DOI: 10.1002/slct.202101719] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sakkani Nagaraju
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
| | - Kota Sathish
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
| | - Dhurke Kashinath
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
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4
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Mackey P, Turlik A, Ando K, Light ME, Houk KN, McGlacken GP. Stereoselective Installation of Five Contiguous Stereogenic Centers in a Double Aldol-Tishchenko Cascade and Evaluation of the Key Transition State through DFT Calculation. Org Lett 2021; 23:6372-6376. [PMID: 34374288 PMCID: PMC8383304 DOI: 10.1021/acs.orglett.1c02179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
The stereoselective formation of
5 contiguous chiral centers in
a single pot reaction is demonstrated using an aldol, aldol–Tishchenko
reaction of N-tert-butyl sulfinimines.
One diastereoisomer (from 32 possibilities) predominates, and a series
of cyclic and acyclic 3-amino-1,5-diol derivatives are synthesized
in good yields (up to 80%) and excellent diastereoselectivities (up
to >98:2 dr). Investigations support two reversible aldol steps,
and
multiple intermediates which are funnelled through a remarkably selective,
irreversible, Tishchenko reduction, in a Curtin–Hammett phenomenon.
DFT calculations using a disolvated (THF) model reveal the factors
controlling stereoselectivity in the final irreversible Tishchenko
step.
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Affiliation(s)
- Pamela Mackey
- School of Chemistry and Analytical and Biological Chemistry Research Facility, University College Cork, Cork, Ireland
| | - Aneta Turlik
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Kaori Ando
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| | - Mark E Light
- University of Southampton, Chemistry Department, University Road, Southampton SO17 1BJ, United Kingdom
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Gerard P McGlacken
- School of Chemistry and Analytical and Biological Chemistry Research Facility, University College Cork, Cork, Ireland
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5
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Zhang M, He XW, Xiong Y, Zuo X, Zhou W, Liu XL. Asymmetric construction of six vicinal stereogenic centers on hexahydroxanthones via organocatalytic one-pot reactions. Chem Commun (Camb) 2021; 57:6764-6767. [PMID: 34132270 DOI: 10.1039/d1cc02570h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Inspired by the chemistry and biology of hexahydroxanthones, herein we report an organocatalytic Michael-Michael-Aldol-decarboxylation reaction that provides efficient access to biologically interesting fully substituted hexahydroxanthones bearing six contiguous stereogenic centers from readily accessible materials in acceptable yields (up to 63%) and excellent stereoselectivities (up to 10 : 1 dr and >99% ee). In other words, the reaction efficiently produces three chemical bonds and up to six vicinal stereogenic centers in a one-pot operation. In particular, to our knowledge, this is an asymmetric organocatalytic strategy enabling the first construction of six vicinal stereogenic centers on non-spirocyclic hexahydroxanthone frameworks.
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Affiliation(s)
- Min Zhang
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Xue-Wen He
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Ya Xiong
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Xiong Zuo
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Wei Zhou
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Xiong-Li Liu
- National & Local Joint Engineering Research Center for the Exploition of Homology Resources of Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
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6
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Gao YQ, Hou Y, Chen J, Zhen Y, Xu D, Zhang H, Wei H, Xie W. Asymmetric synthesis of 9-alkyl tetrahydroxanthenones via tandem asymmetric Michael/cyclization promoted by chiral phosphoric acid. Org Biomol Chem 2021; 19:348-354. [PMID: 33300926 DOI: 10.1039/d0ob02140g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A tandem asymmetric Michael-addition/cyclization of cyclic 1,3-dicarbonyl compounds to β,γ-unsaturated α-ketoesters catalyzed by chiral phosphoric acid is presented. This protocol provides a facile approach for the construction of enantioenriched 9-alkyl tetrahydroxanthenones, an ubiquitous framework found in a number of natural products and pharmaceutical molecules, in high yields with good to high enantioselectivities.
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Affiliation(s)
- Yu-Qi Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China.
| | - Yi Hou
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China.
| | - Junhan Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China.
| | - Yanxia Zhen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China.
| | - Dongyang Xu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China.
| | - Hongli Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China.
| | - Hongbo Wei
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi 712100, China
| | - Weiqing Xie
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China. and Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi 712100, China
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7
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Du CJ, Wang ZD, Wang XK, Zeng Y. The crystal structure of 4-(4-chlorophenyl)cyclohexane-1-carboxylic acid, C 13H 15ClO 2. Z KRIST-NEW CRYST ST 2020. [DOI: 10.1515/ncrs-2020-0013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C13H15ClO2, monoclinic, P21/n (no. 14), a = 14.4696(7) Å, b = 9.5385(4) Å, c = 18.7042(11) Å, β = 112.619(2)°, V = 2383.0(2) Å3, Z = 8, R
gt(F) = 0.0414, wR
ref(F
2) = 0.1090, T = 150(2) K.
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Affiliation(s)
- Chao-Jun Du
- School of Biochemical and Chemical Engineering, Nanyang Institute of Technology , Nanyang, Henan 473000, P.R. China
| | - Zong-Dong Wang
- Nanyang Radiation Environment Supervision and Management Station , Nanyang, Henan Province 473000, P.R. China
| | - Xiao-Ke Wang
- Nanyang Environmental Protection Science Research Institute Co., Ltd , Nanyang, Henan 473004, P.R. China
| | - Yan Zeng
- School of Biochemical and Chemical Engineering, Nanyang Institute of Technology , Nanyang, Henan 473000, P.R. China
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8
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Enantioselective, Organocatalytic, Dissymmetric 1,4- and 1,2-Addition of Malononitrile to a Keto-bisenone Followed by an Oxa-Michael Addition Cascade. Org Lett 2019; 21:5793-5797. [PMID: 31298544 DOI: 10.1021/acs.orglett.9b01705] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
An unprecedented enantioselective dissymmetric 1,4- and 1,2-addition of malononitrile to a keto-bisenone followed by an oxa-Michael addition cascade to trap the in situ generated unstable tertiary alcohol have been developed. The quinine-derived amino-squaramide bifunctional organocatalyst worked efficiently and provides the oxa-spiro-[4,4]-nonanes in good yields and excellent diastereo- and enantioselectivities (up to 99:1 dr and 99% ee). Notably, a complete chemoselective addition of a methylene unit to an aliphatic-tethered enone over the aromatic-tethered enone was observed.
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9
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Yadav A, Srivastava A, Mobin SM, Samanta S. L-Proline-Catalyzed One-Pot Diastereoselective Synthesis of Cyclohexanols from β-Aryl-γ-nitroketones and α,β-Unsaturated Aldehydes: A New Route to 2,3,4,6-Tetrasubstituted Phenols. ChemistrySelect 2019. [DOI: 10.1002/slct.201803521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Anubha Yadav
- Discipline of Chemistry; Indian Institute of Technology Indore Simrol, Indore; 453552 Madhya Pradesh India
| | - Anvita Srivastava
- Nanhi Pari Seemant Engineering Institute Pithoragarh; Uttarakhand 262501 India
| | - Shaikh M. Mobin
- Discipline of Chemistry; Indian Institute of Technology Indore Simrol, Indore; 453552 Madhya Pradesh India
| | - Sampak Samanta
- Discipline of Chemistry; Indian Institute of Technology Indore Simrol, Indore; 453552 Madhya Pradesh India
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10
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Li X, Guo L, Peng C, Han B. Organocatalytic Asymmetric Cascade Reactions Based on Gamma-Nitro Carbonyl Compound. CHEM REC 2018; 19:394-423. [PMID: 30019511 DOI: 10.1002/tcr.201800047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 06/19/2018] [Indexed: 12/11/2022]
Abstract
The significant advancements in asymmetric organocascade reactions have been accomplished during the past decades, paving the way to the efficient and stereoselective construction of structurally complex scaffolds from simple and readily available starting materials. Nitro-containing cyclic compounds have become a privileged molecular library given their broad and promising activities in various therapeutic areas. In various approaches to build these valuable scaffolds, the utility of γ-nitrocarbonyl intermediates is one of the most efficient approaches due to its high efficiency, reliability and versatility. The strategies and catalyst systems described here highlight recent advances in the enantioselective synthesis of nitro-containing cyclic molecules via organocascade strategies based on γ-nitrocarbonyl intermediates. Various organocatalysts with distinct activation modes have found application in providing these sophisticated compounds. This review is organized according to the types of organocatalyst. These methods are of importance for the construction of complex chiral cyclic frameworks and the design of new pharmaceutical compounds. We believe that compounds based on nitro-containing cyclic skeletons have the potential to provide novel therapeutic agents and useful biological tools.
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Affiliation(s)
- Xiang Li
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Li Guo
- Ministry of Education Key Laboratory of Standardization of Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Peng
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Ministry of Education Key Laboratory of Standardization of Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Bo Han
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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11
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Patel PN, Chadha A. A simple metal free highly diastereoselective synthesis of heteroaryl substituted (±) cyclohexanols by a branched domino reaction. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.11.070] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Yang MC, Peng C, Huang H, Yang L, He XH, Huang W, Cui HL, He G, Han B. Organocatalytic Asymmetric Synthesis of Spiro-oxindole Piperidine Derivatives That Reduce Cancer Cell Proliferation by Inhibiting MDM2–p53 Interaction. Org Lett 2017; 19:6752-6755. [PMID: 29210587 DOI: 10.1021/acs.orglett.7b03516] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ming-Cheng Yang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Cheng Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Hua Huang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Lei Yang
- State Key Laboratory of Biotherapy, West
China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiang-Hong He
- State Key Laboratory of Biotherapy, West
China Hospital, Sichuan University, Chengdu 610041, China
| | - Wei Huang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Hai-Lei Cui
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Gu He
- State Key Laboratory of Biotherapy, West
China Hospital, Sichuan University, Chengdu 610041, China
| | - Bo Han
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
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13
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Chanda T, Zhao JC. Recent Progress in Organocatalytic Asymmetric Domino Transformations. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701059] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tanmoy Chanda
- Department of Chemistry University of Texas at San Antonio One UTSA Circle San Antonio TX 78249-0698 USA
| | - John C.‐G. Zhao
- Department of Chemistry University of Texas at San Antonio One UTSA Circle San Antonio TX 78249-0698 USA
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14
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Liu XL, Zhang XL, Guo YJ, Meng CH, Xia AB, Xu DQ. Asymmetric Synthesis of Functionalized Nitrophenols via a Copper(II)-Mediated Bromination/Debromination Aromatization Sequence. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700208] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Xue-Li Liu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 P. R. China
| | - Xiao-Long Zhang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 P. R. China
| | - Yan-Jun Guo
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 P. R. China
| | - Chen-Hong Meng
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 P. R. China
| | - Ai-Bao Xia
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 P. R. China
| | - Dan-Qian Xu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 P. R. China
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15
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Rana NK, Joshi H, Jha RK, Singh VK. Enantioselective Tandem Oxidation/Michael-Aldol Approaches to Tetrasubstituted Cyclohexanes. Chemistry 2017; 23:2040-2043. [DOI: 10.1002/chem.201605999] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Nirmal K. Rana
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal, M.P.- 462 066 India
| | - Harshit Joshi
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur, U.P.- 208 016 India
| | - Rupesh K. Jha
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur, U.P.- 208 016 India
| | - Vinod K. Singh
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal, M.P.- 462 066 India
- Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur, U.P.- 208 016 India
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16
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Jia ZL, Wang Y, Xu GQ, Xu PF. Kinetic resolution via supramolecular iminium catalysis: multiactivation enables the asymmetric synthesis of β-aryl substituted aldehydes and densely functionalized cyclohexanes. Chem Commun (Camb) 2017; 53:4938-4941. [DOI: 10.1039/c7cc01625e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A kinetic resolution affording enantioenriched β-aryl substituted aldehydes and densely functionalized cyclohexanes has been accomplished using a supramolecular iminium catalysis strategy.
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Affiliation(s)
- Zhi-Long Jia
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yao Wang
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- P. R. China
| | - Guo-Qiang Xu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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17
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Liu Q, Zhao K, Zhi Y, Raabe G, Enders D. Squaramide-catalyzed domino Michael/aza-Henry [3 + 2] cycloaddition: asymmetric synthesis of functionalized 5-trifluoromethyl and 3-nitro substituted pyrrolidines. Org Chem Front 2017. [DOI: 10.1039/c7qo00161d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The diastereo- and enantioselective Michael/aza-Henry [3 + 2] cycloaddition reaction of trifluoromethyl-substituted iminomalonate and nitroalkenes has been developed employing 10 mol% of a quinine-squaramide catalyst.
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Affiliation(s)
- Qiang Liu
- Institute of Organic Chemistry
- RWTH Aachen University
- Aachen
- Germany
| | - Kun Zhao
- Institute of Organic Chemistry
- RWTH Aachen University
- Aachen
- Germany
| | - Ying Zhi
- Institute of Organic Chemistry
- RWTH Aachen University
- Aachen
- Germany
| | - Gerhard Raabe
- Institute of Organic Chemistry
- RWTH Aachen University
- Aachen
- Germany
| | - Dieter Enders
- Institute of Organic Chemistry
- RWTH Aachen University
- Aachen
- Germany
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18
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Sun QS, Zhu H, Lin H, Tan Y, Yang XD, Sun XW, Sun X. Dual-organocatalytic Michael/Michael/aldol cascade reaction for the asymmetric construction of fully-substituted cyclohexane. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.11.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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19
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Ričko S, Svete J, Štefane B, Perdih A, Golobič A, Meden A, Grošelj U. 1,3-Diamine-Derived Bifunctional Organocatalyst Prepared from Camphor. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600498] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Sebastijan Ričko
- Faculty of Chemistry and Chemical Technology; University of Ljubljana; Večna pot 113 SI-1000 Ljubljana Slovenia
| | - Jurij Svete
- Faculty of Chemistry and Chemical Technology; University of Ljubljana; Večna pot 113 SI-1000 Ljubljana Slovenia
| | - Bogdan Štefane
- Faculty of Chemistry and Chemical Technology; University of Ljubljana; Večna pot 113 SI-1000 Ljubljana Slovenia
| | - Andrej Perdih
- National Institute of Chemistry; Hajdrihova 19 SI-1000 Ljubljana Slovenia
| | - Amalija Golobič
- Faculty of Chemistry and Chemical Technology; University of Ljubljana; Večna pot 113 SI-1000 Ljubljana Slovenia
| | - Anže Meden
- Faculty of Chemistry and Chemical Technology; University of Ljubljana; Večna pot 113 SI-1000 Ljubljana Slovenia
| | - Uroš Grošelj
- Faculty of Chemistry and Chemical Technology; University of Ljubljana; Večna pot 113 SI-1000 Ljubljana Slovenia
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20
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Reddy RR, Gudup SS, Ghorai P. Organocatalytic, Enantioselective Synthesis of Cyclohexadienone Containing Hindered Spirocyclic Ethers through an Oxidative Dearomatization/Oxa-Michael Addition Sequence. Angew Chem Int Ed Engl 2016; 55:15115-15119. [DOI: 10.1002/anie.201607039] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 08/24/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Reddy Rajasekhar Reddy
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
| | - Satish Sonbarao Gudup
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
| | - Prasanta Ghorai
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
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21
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Reddy RR, Gudup SS, Ghorai P. Organocatalytic, Enantioselective Synthesis of Cyclohexadienone Containing Hindered Spirocyclic Ethers through an Oxidative Dearomatization/Oxa-Michael Addition Sequence. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Reddy Rajasekhar Reddy
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
| | - Satish Sonbarao Gudup
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
| | - Prasanta Ghorai
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
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22
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Li J, Li XB, Ma SS, Liu J, Li BH, Li BL. An Ionic Liquid Containing L-Proline Moiety as Highly Efficient and Recyclable Chiral Organocatalyst for Michael Addition. B KOREAN CHEM SOC 2016. [DOI: 10.1002/bkcs.10848] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jiang Li
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 China
- Department of Medical Chemistry, School of Basic Medical Science; Ningxia Medical University; Yinchuan 750004 China
| | - Xia Bing Li
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 China
| | - Sha Sha Ma
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 China
| | - Juan Liu
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 China
| | - Ben Hao Li
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 China
| | - Bao Lin Li
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 China
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23
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Sun J, Jiang C, Zhou Z. Optically Active 4-Substituted 5-Nitropentan-2-ones: Valuable Chiral Building Blocks for the Stereocontrolled Construction of Spiro-Pyrazolone Scaffolds with Five Contiguous Stereogenic Centers. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501449] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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24
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Wang Y, Pan J, Jiang R, Wang Y, Zhou Z. Stereocontrolled Construction of 3,4‐Dihydrocoumarin Scaffolds with a Quaternary Amino Acid Moiety
via
Chiral Squaramide‐Catalyzed Cascade Michael Addition/Lactonization Reaction. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500862] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yuehua Wang
- Institute and State Key Laboratory of Elemento‐Organic Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People's Republic of China, Fax: (+86)‐22‐2350‐3627
| | - Jianping Pan
- Institute and State Key Laboratory of Elemento‐Organic Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People's Republic of China, Fax: (+86)‐22‐2350‐3627
| | - Rongrong Jiang
- Institute and State Key Laboratory of Elemento‐Organic Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People's Republic of China, Fax: (+86)‐22‐2350‐3627
| | - Youming Wang
- Institute and State Key Laboratory of Elemento‐Organic Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People's Republic of China, Fax: (+86)‐22‐2350‐3627
| | - Zhenghong Zhou
- Institute and State Key Laboratory of Elemento‐Organic Chemistry, Nankai University, Tianjin 300071, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People's Republic of China, Fax: (+86)‐22‐2350‐3627
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25
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Kaur J, Chauhan P, Chimni SS. α,α-Dicyanoolefins: versatile substrates in organocatalytic asymmetric transformations. Org Biomol Chem 2016; 14:7832-47. [DOI: 10.1039/c6ob01229a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
α,α-Dicyanoolefins have emerged as versatile reactants, finding use as vinylogous nucleophiles, Michael acceptors and dienophiles in a variety of organic reactions.
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Affiliation(s)
- Jasneet Kaur
- Department of Chemistry
- U.G.C. Centre of Advance Studies in Chemistry
- Guru Nanak Dev University
- Amritsar
- India
| | - Pankaj Chauhan
- Department of Chemistry
- U.G.C. Centre of Advance Studies in Chemistry
- Guru Nanak Dev University
- Amritsar
- India
| | - Swapandeep Singh Chimni
- Department of Chemistry
- U.G.C. Centre of Advance Studies in Chemistry
- Guru Nanak Dev University
- Amritsar
- India
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26
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Peng CH, Hong BC, Raja A, Chang CW, Lee GH. Constructing densely functionalized Hajos–Parrish-type ketones with six contiguous stereogenic centers and two quaternary carbons in a formal [2 + 2 + 2] cycloaddition cascade. RSC Adv 2016. [DOI: 10.1039/c6ra22430j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Efficient construction of Hajos–Parrish-type ketones with six contiguous stereogenic centers in a formal [2 + 2 + 2] cycloaddition cascade. The spontaneous resolution of racemic product without the need for chiral agent has been achieved.
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Affiliation(s)
- Chieh-Hung Peng
- Department of Chemistry and Biochemistry
- National Chung Cheng University
- Chia-Yi 621
- Republic of China
| | - Bor-Cherng Hong
- Department of Chemistry and Biochemistry
- National Chung Cheng University
- Chia-Yi 621
- Republic of China
| | - Arun Raja
- Department of Chemistry and Biochemistry
- National Chung Cheng University
- Chia-Yi 621
- Republic of China
| | - Chun-Wei Chang
- Department of Chemistry and Biochemistry
- National Chung Cheng University
- Chia-Yi 621
- Republic of China
| | - Gene-Hsiang Lee
- Instrumentation Center
- National Taiwan University
- Taipei
- Republic of China
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27
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Yu L, Yang Z, Peng J, Li P. Substrate-Controlled Synthesis of Functionalized Cyclohexanes with Four Stereocenters by Organocatalytic Asymmetric Domino Reactions Between γ-Nitro Ketone and Enone. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501303] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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28
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Kumar R, Tokura H, Nishimura A, Mori T, Hoshimoto Y, Ohashi M, Ogoshi S. Nickel(0)/N-Heterocyclic Carbene-Catalyzed Asymmetric [2 + 2 + 2] Cycloaddition of Two Enones and an Alkyne: Access to Cyclohexenes with Four Contiguous Stereogenic Centers. Org Lett 2015; 17:6018-21. [PMID: 26618525 DOI: 10.1021/acs.orglett.5b02983] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A nickel(0)/chiral N-heterocyclic carbene (NHC)-catalyzed fully intermolecular, enantioselective [2 + 2 + 2] cycloaddition of two enones and an alkyne has been developed to access enantioenriched cyclohexenes. A single diastereomer was obtained with a successive generation of four contiguous stereogenic centers. The absolute configuration of cyclohexene derivative 3aa was determined by X-ray diffraction and circular dichroism (CD) spectral studies.
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Affiliation(s)
- Ravindra Kumar
- Department of Applied Chemistry, Faculty of Engineering, Osaka University , Suita, Osaka 565-0871, Japan
| | - Hiromu Tokura
- Department of Applied Chemistry, Faculty of Engineering, Osaka University , Suita, Osaka 565-0871, Japan
| | - Akira Nishimura
- Department of Applied Chemistry, Faculty of Engineering, Osaka University , Suita, Osaka 565-0871, Japan
| | - Tadashi Mori
- Department of Applied Chemistry, Faculty of Engineering, Osaka University , Suita, Osaka 565-0871, Japan
| | - Yoichi Hoshimoto
- Department of Applied Chemistry, Faculty of Engineering, Osaka University , Suita, Osaka 565-0871, Japan
| | - Masato Ohashi
- Department of Applied Chemistry, Faculty of Engineering, Osaka University , Suita, Osaka 565-0871, Japan
| | - Sensuke Ogoshi
- Department of Applied Chemistry, Faculty of Engineering, Osaka University , Suita, Osaka 565-0871, Japan
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29
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Leng HJ, Peng F, Zingales S, Huang W, Wang B, Zhao Q, Zhou R, He G, Peng C, Han B. Core-Scaffold-Inspired Asymmetric Synthesis of Polysubstituted Chiral Hexahydropyridazines that Potently Inhibit Breast Cancer Cell Proliferation by Inducing Apoptosis. Chemistry 2015; 21:18100-8. [PMID: 26498568 DOI: 10.1002/chem.201503063] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Indexed: 02/05/2023]
Abstract
The highly enantioselective preparation of pharmacologically interesting hexahydropyridazine derivatives based on a multicomponent cascade reaction is described. This one-pot approach utilizes an organocatalytic Michael reaction followed by intermolecular α-amination and intramolecular hemiaminalization to yield a chiral pyridazine backbone with contiguous stereogenic centers and multiple functional groups in good yield and with high stereoselectivity. Compounds synthesized by this method potently inhibited proliferation of MCF-7 breast cancer cells. Mechanistic studies suggest that compound 5 c exerts these anticancer effects by inducing apoptosis through extracellular signal related kinase (ERK)- and poly(adenosine diphosphate ribose) polymerase (PARP)-regulated pathways, as well as mitochondrial pathways.
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Affiliation(s)
- Hai-Jun Leng
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137 (P.R. China)
| | - Fu Peng
- School of Chinese Medicine, University of Hong Kong, Hong Kong (P.R. China)
| | - Sarah Zingales
- Department of Chemistry, Armstrong State University, Savannah, GA (USA)
| | - Wei Huang
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137 (P.R. China)
| | - Biao Wang
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137 (P.R. China)
| | - Qian Zhao
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137 (P.R. China)
| | - Rui Zhou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041 (P.R. China)
| | - Gu He
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041 (P.R. China).
| | - Cheng Peng
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137 (P.R. China).
| | - Bo Han
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137 (P.R. China).
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30
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Amireddy M, Chen K. Organocatalytic synthesis of spirocyclohexane indane-1,3-diones via a chiral squaramide-catalyzed Michael/aldol cascade reaction of γ-nitro ketones and 2-arylideneindane-1,3-diones. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.08.061] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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31
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Varga S, Jakab G, Csámpai A, Soós T. Iterative Coupling of Two Different Enones by Nitromethane Using Bifunctional Thiourea Organocatalysts. Stereocontrolled Assembly of Cyclic and Acyclic Structures. J Org Chem 2015; 80:8990-6. [DOI: 10.1021/acs.joc.5b01474] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Szilárd Varga
- Institute
of Organic Chemistry, Research Centre for Natural Sciences, HAS, P.O. Box 286, Budapest, H-1519, Hungary
| | - Gergely Jakab
- Institute
of Organic Chemistry, Research Centre for Natural Sciences, HAS, P.O. Box 286, Budapest, H-1519, Hungary
| | - Antal Csámpai
- Institute
of Chemistry, Department of Inorganic Chemistry, L. Eötvös University, Pázmány Péter sétány 1/A, Budapest H-1117, Hungary
| | - Tibor Soós
- Institute
of Organic Chemistry, Research Centre for Natural Sciences, HAS, P.O. Box 286, Budapest, H-1519, Hungary
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32
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Zhang YY, Gurubrahamam R, Chen K. Rauhut-Currier-Initiated Organocascade Reaction: Synthesis of Substituted Dispirocyclohexanes through a [2+2+2] Strategy Between 2-Arylideneindan-1,3-diones and Activated Alkenes. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500091] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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33
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Chang YP, Gurubrahamam R, Chen K. Enantioselective Synthesis of Functionalized Polycarbocycles via a Three-Component Organocascade Quadruple Reaction. Org Lett 2015; 17:2908-11. [PMID: 26020799 DOI: 10.1021/acs.orglett.5b01040] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient organocascade quadruple reaction was conducted to synthesize a functionalized spiropolycyclic scaffold in high chemical yields (43-80%) and excellent levels of stereoselectivity (up to >19:1 dr and 99% ee). The quadruple reaction proceeded smoothly between 1,3-indanedione and aromatic aldehydes with concomitant desymmetrization of prochiral 4-substituted cyclohexanones through the Knoevenagel/Michael/aldol/aldol reaction sequence catalyzed by a bifunctional thiourea catalyst. Two of the formed products were transformed into spirocyclic epoxides containing four contiguous quaternary centers.
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Affiliation(s)
- Yun-Pu Chang
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Ramani Gurubrahamam
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Kwunmin Chen
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan
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34
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Chauhan P, Mahajan S, Raabe G, Enders D. Organocatalytic one-pot 1,4-/1,6-/1,2-addition sequence for the stereocontrolled formation of six consecutive stereocenters. Chem Commun (Camb) 2015; 51:2270-2. [PMID: 25563802 PMCID: PMC4612129 DOI: 10.1039/c4cc09730k] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An unprecedented stereoselective organocatalytic one-pot 1,4-/1,6-/1,2-addition sequence between β-dicarbonyl compounds, β-nitroalkenes and 4-nitro-5-styrylisoxazoles sequentially catalyzed by low loading of a squaramide catalyst and an achiral base has been developed. The protocol opens an efficient entry to isoxazole bearing cyclohexanes with six consecutive stereogenic centers including one tetrasubstituted carbon in good yields and excellent diastereo- and enantioselectivities.
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Affiliation(s)
- Pankaj Chauhan
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
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35
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Mahajan S, Chauhan P, Loh CCJ, Uzungelis S, Raabe G, Enders D. Organocatalytic Asymmetric Domino Michael/Henry Reaction of Indolin-3-ones with o-Formyl-β-nitrostyrenes. SYNTHESIS-STUTTGART 2015; 47:1024-1031. [PMID: 26722133 PMCID: PMC4693955 DOI: 10.1055/s-0034-1379943] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A highly diastereo- and enantioselective domino Michael/Henry reaction of 1-acetylindolin-3-ones with o-formyl-(E)-β-nitrostyrenes catalyzed by low loading of a quinine-derived amine-squaramide provides the corresponding indolin-3-one derivatives bearing four adjacent stereogenic centers in good to high yields and with excellent stereoselectivities.
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Affiliation(s)
- Suruchi Mahajan
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Pankaj Chauhan
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Charles C. J. Loh
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Server Uzungelis
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Gerhard Raabe
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Dieter Enders
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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36
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Han B, Huang W, Ren W, He G, Wang JH, Peng C. Asymmetric Synthesis of Cyclohexane-Fused Drug-Like Spirocyclic Scaffolds Containing Six Contiguous Stereogenic CentersviaOrganocatalytic Cascade Reactions. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201400764] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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37
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Chauhan P, Mahajan S, Kaya U, Hack D, Enders D. Bifunctional Amine-Squaramides: Powerful Hydrogen-Bonding Organocatalysts for Asymmetric Domino/Cascade Reactions. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201401003] [Citation(s) in RCA: 412] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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38
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Huang X, Pham K, Zhang X, Yi WB, Hyatt JH, Tran AP, Jasinski JP, Zhang W. Recyclable organocatalyst-promoted one-pot Michael/aza-Henry/lactamization reactions for fluorinated 2-piperidinones bearing four stereogenic centres. RSC Adv 2015. [DOI: 10.1039/c5ra15306a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
A highly efficient method for asymmetric synthesis of fluorinated 2-piperidinones bearing four stereogenic centres is introduced.
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Affiliation(s)
- Xin Huang
- Department of Chemistry
- University of Massachusetts Boston
- Boston
- USA
| | - Kenny Pham
- Department of Chemistry
- University of Massachusetts Boston
- Boston
- USA
| | - Xiaofeng Zhang
- Department of Chemistry
- University of Massachusetts Boston
- Boston
- USA
| | - Wen-Bin Yi
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Jeremy H. Hyatt
- Department of Chemistry
- University of Massachusetts Boston
- Boston
- USA
| | - Anthony P. Tran
- Department of Chemistry
- University of Massachusetts Boston
- Boston
- USA
| | | | - Wei Zhang
- Department of Chemistry
- University of Massachusetts Boston
- Boston
- USA
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39
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Blümel M, Chauhan P, Hahn R, Raabe G, Enders D. Asymmetric synthesis of tetrahydropyridines via an organocatalytic one-pot multicomponent Michael/aza-Henry/cyclization triple domino reaction. Org Lett 2014; 16:6012-5. [PMID: 25379786 PMCID: PMC4611353 DOI: 10.1021/ol503024d] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Indexed: 12/22/2022]
Abstract
A low loading of a quinine-derived squaramide efficiently catalyzes the triple-domino Michael/aza-Henry/cyclization reaction between 1,3-dicarbonyl compounds, β-nitroolefins, and aldimines to provide tetrahydropyridines bearing three contiguous stereogenic centers in good yields, excellent enantiomeric excesses, and up to high diastereomeric ratios.
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Affiliation(s)
- Marcus Blümel
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Pankaj Chauhan
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Robert Hahn
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Gerhard Raabe
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Dieter Enders
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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40
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Loh CCJ, Chauhan P, Hack D, Lehmann C, Enders D. Rapid Asymmetric Synthesis of Highly Functionalized Indanolsviaa Michael/Henry Organocascade with Submol% Squaramide Catalyst Loadings. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400499] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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