1
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Wang Y, Yang M, Lao C, Wang H, Jiang Z. Oxidative Cross-Coupling of α-Amino Ketones with Alcohols Enabled by I 2-Catalyzed C-H Hydroxylation. J Org Chem 2023; 88:14470-14486. [PMID: 37807762 PMCID: PMC10594655 DOI: 10.1021/acs.joc.3c01469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Indexed: 10/10/2023]
Abstract
An I2-catalyzed oxidative cross-coupling of α-amino ketones with a wide range of alcohols is described. Using a combination of air and dimethyl sulfoxide (DMSO) as oxidants, the protocol allows an efficient synthesis of α-carbonyl N,O-acetals with high functional group tolerance and enables the late-stage introduction of α-amino ketones into biorelevant alcohols. Moreover, the present method can be used in the coupling of α-amino ketones with other kinds of nucleophiles, which demonstrates great generality for the functionalization of α-amino ketones. A preliminary mechanistic investigation suggests that C-H hydroxylation of α-amino ketones has been recognized as the key step followed by subsequent dehydration coupling.
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Affiliation(s)
- Yingwei Wang
- State
Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau 999078, China
- School
of Chemical Engineering, Sichuan University
of Science & Engineering, Zigong 643000, China
| | - Mingrong Yang
- State
Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau 999078, China
| | - Chichou Lao
- State
Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau 999078, China
| | - Hanxuan Wang
- State
Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau 999078, China
| | - Zhihong Jiang
- State
Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau 999078, China
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2
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Zhou SY, Zhang D, Liu XJ, Qin JH, Fu ZL, Li SL, Cai FJ, Li Y, Li JH. Visible-Light-Driven Photoredox-Catalyzed C(sp3)-C(sp3) Cross-Coupling of N-arylamines with Cycloketone Oxime Esters. Org Chem Front 2022. [DOI: 10.1039/d2qo00128d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel photoredox-catalyzed C(sp3)-C(sp3) cross-coupling between N-arylamines and cycloketone oxime esters under mild conditions has been accomplished. The redox-neutral reaction proceeds good functional group tolerance and excellent regioselectivity without any...
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3
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Liang J, Fu Y, Bao X, Ou L, Sang T, Yuan Y, Huo C. Cyanation of glycine derivatives. Chem Commun (Camb) 2021; 57:3014-3017. [PMID: 33623936 DOI: 10.1039/d0cc08126d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We report a catalytic oxidative C-H cyanation of glycine derivatives using a simple copper(i) catalyst with NFSI as an oxidant via a radical process to furnish α-cyano glycine derivatives, which are useful intermediates for organic synthesis. CuCl acted as both a one-electron reductant and a transition-metal catalyst in this transformation. NFSI served as a one-electron oxidant and generated a N-centered radical as a H-abstractor. The reaction displayed broad substrate scope and mild reaction conditions.
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Affiliation(s)
- Jia Liang
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China.
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4
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Liu S, Zhu ZQ, Hu ZY, Tang J, Yuan E. Copper-catalyzed oxidative cyclization of glycine derivatives toward 2-substituted benzoxazoles. Org Biomol Chem 2021; 19:1616-1619. [PMID: 33533370 DOI: 10.1039/d0ob02490b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A novel and straightforward intramolecular cyclization of glycine derivatives to 2-substituted benzoxazoles through copper-catalyzed oxidative C-H/O-H cross-coupling was described. A variety of glycine derivatives involving short peptides underwent cross-dehydrogenative-coupling readily to afford diverse 2-substituted benzoxazoles. The synthetic method has the advantages of simple operation, broad substrate scope and mild reaction conditions, thus providing an alternative effective approach for benzoxazole construction.
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Affiliation(s)
- Shan Liu
- Jiangxi Province Key Laboratory of Synthetic chemistry, School of Chemistry, Biology and Material Science, East China University of Technology, Nanchang 330013, 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, China.
| | - Zhi-Yu Hu
- Jiangxi Province Key Laboratory of Synthetic chemistry, School of Chemistry, Biology and Material 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
| | - En Yuan
- College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China
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5
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Wang H, Ying P, Yu J, Su W. Alternative Strategies Enabling Cross-Dehydrogenative Coupling: Access to C—C Bonds. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202009053] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Patel RI, Sharma A, Sharma S, Sharma A. Visible light-mediated applications of methylene blue in organic synthesis. Org Chem Front 2021. [DOI: 10.1039/d0qo01182g] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review presents the manipulation of methylene blue in visible-light-assisted organic synthesis.
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Affiliation(s)
| | - Anoop Sharma
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Shivani Sharma
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Anuj Sharma
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
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7
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Cascade cyclization of glycine derivatives with β-ketoesters for polysubstituted 1,4-dihydropyridines by visible light photoredox catalysis. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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8
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Wang J, Sun B, Zhang L, Xu T, Xie Y, Jin C. Transition-metal-free direct C-3 cyanation of quinoxalin-2(1H)-ones with ammonium thiocyanate as the “CN” source. Org Chem Front 2020. [DOI: 10.1039/c9qo01055f] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A practical protocol for TBHP-mediated oxidative C–H cyanation of quinoxalin-2(1H)-ones utilizing ammonium thiocyanate as the cyanide source has been developed under metal free conditions.
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Affiliation(s)
- Jiayang Wang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Bin Sun
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Liang Zhang
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Tengwei Xu
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Yuanyuan Xie
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Can Jin
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
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9
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Jin C, Zhu R, Sun B, Zhang L, Zhuang X, Yu C. Visible‐Light‐Induced Remote C−H Difluoroalkylation of 8‐Aminoquinolines via Debrominative Coupling with Functionalized Difluoromethyl Bromides. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900624] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Can Jin
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310014 P. R. China
| | - Rui Zhu
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310014 P. R. China
| | - Bin Sun
- Collaborative Innovation Centre of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou 310032 P. R. China
| | - Liang Zhang
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310014 P. R. China
| | - Xiaohui Zhuang
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310014 P. R. China
| | - Chuanming Yu
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310014 P. R. China
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10
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Sun B, Yang J, Zhang L, Shi R, Zhang X, Xu T, Zhuang X, Zhu R, Yu C, Jin C. Photocatalytic Aerobic Double Friedel‐Crafts Reaction of Glycine Derivatives with Anilines: An Efficient Synthesis of Diarylmethanes. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900542] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Bin Sun
- Collaborative Innovation Centre of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou 310032 P. R. China
| | - Jin Yang
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310032 P. R. China
| | - Liang Zhang
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310032 P. R. China
| | - Rongcheng Shi
- Collaborative Innovation Centre of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou 310032 P. R. China
| | - Xun Zhang
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310032 P. R. China
| | - Tengwei Xu
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310032 P. R. China
| | - Xiaohui Zhuang
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310032 P. R. China
| | - Rui Zhu
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310032 P. R. China
| | - Chuanming Yu
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310032 P. R. China
| | - Can Jin
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310032 P. R. China
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11
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Wang J, Sun B, Zhang L, Xu T, Xie Y, Jin C. Visible‐Light‐Induced Trifluoromethylation of Quinoxalin‐2(1
H
)‐Ones under Photocatalyst‐Free Conditions. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900414] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jiayang Wang
- Collaborative Innovation Centre of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou 310014 P. R. China
| | - Bin Sun
- Collaborative Innovation Centre of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou 310014 P. R. China
| | - Liang Zhang
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310014 P. R. China
| | - Tengwei Xu
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310014 P. R. China
| | - Yuanyuan Xie
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310014 P. R. China
| | - Can Jin
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310014 P. R. China
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12
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Yan Z, Sun B, Zhang X, Zhuang X, Yang J, Su W, Jin C. Construction of C(sp 2 )-C(sp 3 ) Bond between Quinoxalin-2(1H)-ones and N-Hydroxyphthalimide Esters via Photocatalytic Decarboxylative Coupling. Chem Asian J 2019; 14:3344-3349. [PMID: 31432590 DOI: 10.1002/asia.201900904] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/14/2019] [Indexed: 12/12/2022]
Abstract
A novel visible-light-driven decarboxylative coupling of alkyl N-hydroxyphthalimide esters (NHP esters) with quinoxalin-2(1H)-ones has been developed. This C(sp2 )-C(sp3 ) bond-forming transformation exhibits excellent substrate generality with respect to both the coupling partners. Of note, a series of 3-primary alkyl-substituted quinoxalin-2(1H)-ones that were difficult to synthesize by previous methods could be obtained in moderate to excellent yields. Additionally, the mild conditions, easy availability of substrates, wide functional group tolerance and operational simplicity make this protocol practical in the synthesis of 3-alkylated quinoxalin-2(1H)-ones.
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Affiliation(s)
- Zhiyang Yan
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Bin Sun
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Xun Zhang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Xiaohui Zhuang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Jin Yang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Weike Su
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.,College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Can Jin
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
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13
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Jin C, Zhuang X, Sun B, Li D, Zhu R. Merging Visible‐Light Photoredox and Organoamine Catalysis for the C‐3 Difluoroalkylation of Quinoxalin‐2(1
H
)‐Ones. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900369] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Can Jin
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310014 P. R. China
| | - Xiaohui Zhuang
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310014 P. R. China
| | - Bin Sun
- Collaborative Innovation Centre of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou 310014 P. R. China
| | - Deyu Li
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310014 P. R. China
| | - Rui Zhu
- College of Pharmaceutical SciencesZhejiang University of Technology Hangzhou 310014 P. R. China
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14
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Kong Y, Xu W, Ye F, Weng J. Recent Advances in Visible-Light-Induced Cross Dehydrogenation Coupling Reaction under Transition Metal-Free Conditions. CHINESE J ORG CHEM 2019. [DOI: 10.6023/cjoc201905016] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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