101
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Nguyen VT, Nguyen VD, Haug GC, Vuong NTH, Dang HT, Arman HD, Larionov OV. Visible-Light-Enabled Direct Decarboxylative N-Alkylation. Angew Chem Int Ed Engl 2020; 59:7921-7927. [PMID: 32050048 PMCID: PMC7200280 DOI: 10.1002/anie.201916710] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Indexed: 11/12/2022]
Abstract
The development of efficient and selective C-N bond-forming reactions from abundant feedstock chemicals remains a central theme in organic chemistry owing to the key roles of amines in synthesis, drug discovery, and materials science. Herein, we present a dual catalytic system for the N-alkylation of diverse aromatic carbocyclic and heterocyclic amines directly with carboxylic acids, by-passing their preactivation as redox-active esters. The reaction, which is enabled by visible-light-driven, acridine-catalyzed decarboxylation, provides access to N-alkylated secondary and tertiary anilines and N-heterocycles. Additional examples, including double alkylation, the installation of metabolically robust deuterated methyl groups, and tandem ring formation, further demonstrate the potential of the direct decarboxylative alkylation (DDA) reaction.
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Affiliation(s)
- Vu T Nguyen
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, USA
| | - Viet D Nguyen
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, USA
| | - Graham C Haug
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, USA
| | - Ngan T H Vuong
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, USA
| | - Hang T Dang
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, USA
| | - Hadi D Arman
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, USA
| | - Oleg V Larionov
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, USA
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102
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Kondo Y, Morimoto H, Ohshima T. Recent Progress towards the Use of Benzophenone Imines as an Ammonia Equivalent. CHEM LETT 2020. [DOI: 10.1246/cl.200099] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Yuta Kondo
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Hiroyuki Morimoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Takashi Ohshima
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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103
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104
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105
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Mondal A, Mukhopadhyay C. Construction of Carbon-Carbon and Carbon-Heteroatom Bonds: Enabled by Visible Light. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824666200211115154] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The present review provides an overview of visible light-mediated environment-
friendly approaches over the past decade for the formation of carbon-carbon and
carbon-heteroatom framework. This area has recently emerged as a versatile, environmentally
benign and green platform for the development of a highly sustainable synthetic
methodology. According to the recent advancements, visible light has come to the forefront
in synthetic organic chemistry as a powerful green strategy for the activation of small
molecules.
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Affiliation(s)
- Animesh Mondal
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata-700009, India
| | - Chhanda Mukhopadhyay
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata-700009, India
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106
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Xu T, Cao T, Yang M, Xu R, Nie X, Liao S. Decarboxylative Thiolation of Redox-Active Esters to Thioesters by Merging Photoredox and Copper Catalysis. Org Lett 2020; 22:3692-3696. [DOI: 10.1021/acs.orglett.0c01180] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tianxiao Xu
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
| | - Tianpeng Cao
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
| | - Mingcheng Yang
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
| | - Ruting Xu
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
| | - Xingliang Nie
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
| | - Saihu Liao
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
- Beijing National Laboratory for Molecular Sciences (BNLMS), Beijing 100190, P. R. China
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107
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Shao M, Liang H, Liu Y, Qin W, Li Z. Photo‐Mediated Decarboxylative Cross Coupling of Quinoxalin‐2(1
H
)‐ones with Aliphatic Carboxylic Acids in Aqueous Solution: Synthesis of Alkylated Quinoxalin‐2(1
H
)‐ones and Preliminary Antifungal Evaluation Against
Magnaporthe Grisea. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000073] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Manyu Shao
- Department of Applied ChemistryCollege of Materials and EnergySouth China Agricultural University Guangzhou 510642 P. R. China
| | - Hanbin Liang
- Department of Applied ChemistryCollege of Materials and EnergySouth China Agricultural University Guangzhou 510642 P. R. China
| | - Yun‐Lin Liu
- School of Chemistry and Chemical EngineeringGuangzhou University 230 Wai Huan Xi Road Guangzhou 510006 P. R. China Guangzhou,510642 (P. R. China
| | - Weiwei Qin
- Department of Applied ChemistryCollege of Materials and EnergySouth China Agricultural University Guangzhou 510642 P. R. China
| | - Zhaodong Li
- Department of Applied ChemistryCollege of Materials and EnergySouth China Agricultural University Guangzhou 510642 P. R. China
- Key Laboratory of Natural Pesticide & Chemical BiologyMinistry of EducationSouth China Agricultural University Guangzhou 510642 P. R. China
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108
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Liu Y, Yang Y, Zhu R, Zhang D. Computational Clarification of Synergetic RuII/CuI-Metallaphotoredox Catalysis in C(sp3)–N Cross-Coupling Reactions of Alkyl Redox-Active Esters with Anilines. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00060] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Yanhong Liu
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Yiying Yang
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Rongxiu Zhu
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Dongju Zhang
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
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109
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A map of the amine–carboxylic acid coupling system. Nature 2020; 580:71-75. [DOI: 10.1038/s41586-020-2142-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 01/17/2020] [Indexed: 12/18/2022]
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110
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Min QQ, Yang JW, Pang MJ, Ao GZ, Liu F. Copper-Catalyzed Remote C(sp 3)-H Amination of Carboxamides. Org Lett 2020; 22:2828-2832. [PMID: 32207306 DOI: 10.1021/acs.orglett.0c00829] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Here we report a method for the site-selective intermolecular C(sp3)-H amination of carboxamides by merging transition-metal catalysis and the hydrogen atom transfer strategy. The reaction proceeds through a sequence of favorable single-electron transfer, 1,5-hydrogen atom transfer, and C-N cross-coupling steps, thus allowing access to a series of desired products. This reaction could accommodate a wide diversity of nitrogen nucleophiles as well as demonstrate excellent chemoselectivity and functional group compatibility.
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Affiliation(s)
- Qing-Qiang Min
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu 215123, People's Republic of China
| | - Jia-Wen Yang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu 215123, People's Republic of China
| | - Meng-Juan Pang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu 215123, People's Republic of China
| | - Gui-Zhen Ao
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu 215123, People's Republic of China
| | - Feng Liu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu 215123, People's Republic of China.,Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People's Republic of China
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111
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Malapit CA, Borrell M, Milbauer MW, Brigham CE, Sanford MS. Nickel-Catalyzed Decarbonylative Amination of Carboxylic Acid Esters. J Am Chem Soc 2020; 142:5918-5923. [PMID: 32207616 DOI: 10.1021/jacs.9b13531] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The reaction of carboxylic acid derivatives with amines to form amide bonds has been the most widely used transformation in organic synthesis over the past century. Its utility is driven by the broad availability of the starting materials as well as the kinetic and thermodynamic driving force for amide bond formation. As such, the invention of new reactions between carboxylic acid derivatives and amines that strategically deviate from amide bond formation remains both a challenge and an opportunity for synthetic chemists. This report describes the development of a nickel-catalyzed decarbonylative reaction that couples (hetero)aromatic esters with a broad scope of amines to form (hetero)aryl amine products. The successful realization of this transformation was predicated on strategic design of the cross-coupling partners (phenol esters and silyl amines) to preclude conventional reactivity that forms inert amide byproducts.
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Affiliation(s)
- Christian A Malapit
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Margarida Borrell
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Michael W Milbauer
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Conor E Brigham
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Melanie S Sanford
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
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112
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113
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Guo Q, Peng Q, Chai H, Huo Y, Wang S, Xu Z. Visible-light promoted regioselective amination and alkylation of remote C(sp 3)-H bonds. Nat Commun 2020; 11:1463. [PMID: 32193371 PMCID: PMC7081228 DOI: 10.1038/s41467-020-15167-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 02/21/2020] [Indexed: 11/10/2022] Open
Abstract
The C-N cross coupling reaction has always been a fundamental task in organic synthesis. However, the direct use of N-H group of aryl amines to generate N-centered radicals which would couple with alkyl radicals to construct C-N bonds is still rare. Here we report a visible light-promoted C-N radical cross coupling for regioselective amination of remote C(sp3)-H bonds. Under visible light irradiation, the N-H groups of aryl amines are converted to N-centered radicals, and are then trapped by alkyl radicals, which are generated from Hofmann-Löffler-Freytag (HLF) type 1,5-hydrogen atom transfer (1,5-HAT). With the same strategy, the regioselective C(sp3)-C(sp3) cross coupling is also realized by using alkyl Hantzsch esters (or nitrile) as radical alkylation reagents. Notably, the α-C(sp3)-H of tertiary amines can be directly alkylated to form the C(sp3)-C(sp3) bonds via C(sp3)-H − C(sp3)-H cross coupling through the same photoredox pathway. C-N bond forming is an established strategy to form amines, which are quintessential in chemical synthesis and in nature. Here, the authors report three classes of photoredox reactions, involving C(sp3)-N coupling between N-centered radicals and alkyl radicals and C(sp3)- C(sp3) coupling via C(sp3)-H alkylation.
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Affiliation(s)
- Quanping Guo
- Institute of Drug Design & Synthesis, Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, China
| | - Qiang Peng
- Institute of Drug Design & Synthesis, Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, China
| | - Hongli Chai
- Institute of Drug Design & Synthesis, Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, China
| | - Yumei Huo
- Institute of Drug Design & Synthesis, Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, China
| | - Shan Wang
- Institute of Drug Design & Synthesis, Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, China
| | - Zhaoqing Xu
- Institute of Drug Design & Synthesis, Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, 199 West Donggang Road, Lanzhou, 730000, China.
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114
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Nguyen VT, Nguyen VD, Haug GC, Vuong NTH, Dang HT, Arman HD, Larionov OV. Visible‐Light‐Enabled Direct Decarboxylative N‐Alkylation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916710] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Vu T. Nguyen
- Department of Chemistry The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Viet D. Nguyen
- Department of Chemistry The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Graham C. Haug
- Department of Chemistry The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Ngan T. H. Vuong
- Department of Chemistry The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Hang T. Dang
- Department of Chemistry The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Hadi D. Arman
- Department of Chemistry The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Oleg V. Larionov
- Department of Chemistry The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
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115
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Chen X, Luo X, Peng X, Guo J, Zai J, Wang P. Catalyst‐Free Decarboxylation of Carboxylic Acids and Deoxygenation of Alcohols by Electro‐Induced Radical Formation. Chemistry 2020; 26:3226-3230. [DOI: 10.1002/chem.201905224] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/03/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Xiaoping Chen
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of, Education and Guangdong Province, College of Physics and Optoelectronic EngineeringShenzhen University Shenzhen 518060 P. R. China
| | - Xiaosheng Luo
- Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Xiao Peng
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of, Education and Guangdong Province, College of Physics and Optoelectronic EngineeringShenzhen University Shenzhen 518060 P. R. China
| | - Jiaojiao Guo
- Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Jiantao Zai
- Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Ping Wang
- Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
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116
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Petzold D, Giedyk M, Chatterjee A, König B. A Retrosynthetic Approach for Photocatalysis. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901421] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Daniel Petzold
- Department of Organic Chemistry University of Regensburg Universitätsstraße 31 93053 Regensburg Germany
| | - Maciej Giedyk
- Department of Organic Chemistry University of Regensburg Universitätsstraße 31 93053 Regensburg Germany
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01‐224 Warsaw Poland
| | - Anamitra Chatterjee
- Department of Organic Chemistry University of Regensburg Universitätsstraße 31 93053 Regensburg Germany
| | - Burkhard König
- Department of Organic Chemistry University of Regensburg Universitätsstraße 31 93053 Regensburg Germany
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117
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Trowbridge A, Walton SM, Gaunt MJ. New Strategies for the Transition-Metal Catalyzed Synthesis of Aliphatic Amines. Chem Rev 2020; 120:2613-2692. [DOI: 10.1021/acs.chemrev.9b00462] [Citation(s) in RCA: 310] [Impact Index Per Article: 77.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Aaron Trowbridge
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Scarlett M. Walton
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
- Oncology
- IMED Biotech Unit, AstraZeneca, Darwin Building, Unit 310, Cambridge Science Park, Milton Road, Cambridge CB4 0WG, United Kingdom
| | - Matthew J. Gaunt
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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118
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Zhang X, Smith RT, Le C, McCarver SJ, Shireman BT, Carruthers NI, MacMillan DWC. Copper-mediated synthesis of drug-like bicyclopentanes. Nature 2020; 580:220-226. [PMID: 32066140 PMCID: PMC7148169 DOI: 10.1038/s41586-020-2060-z] [Citation(s) in RCA: 143] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 01/29/2020] [Indexed: 11/18/2022]
Abstract
Multicomponent reactions (MCRs) have become a mainstay in both academic and industrial synthetic organic chemistry due to their step- and atom-economy advantages over traditional synthetic sequences1. Recently, bicyclo[1.1.1]pentane (BCP) motifs have come to the fore as valuable pharmaceutical bioisosteres of benzene rings, and, in particular, 1,3-disubstituted BCP moieties have become widely adopted in medicinal chemistry as para-phenyl ring replacements2. Often these structures are generated from [1.1.1]propellane via opening of the internal C─C bond, either through the addition of radicals or metal-based nucleophiles 3-13. The resulting propellane-addition adducts are subsequently transformed to the requisite polysubstituted BCP compounds via a range of synthetic sequences that traditionally involve multiple chemical steps. While this approach has been effective to date, it is clear that a multicomponent reaction that enables single-step access to complex and diverse polysubstituted BCP products would be synthetically advantageous over the current stepwise approaches. Herein we report a one-step three-component radical coupling of [1.1.1]propellane to afford diverse functionalized bicycles using various radical precursors and heteroatom nucleophiles via a metallaphotoredox catalysis protocol. The reaction operates on short time scales (five minutes to one hour) across multiple (>10) nucleophile classes and can accommodate a diverse array of radical precursors, including those which generate alkyl, α-acyl, trifluoromethyl, and sulfonyl radicals. This method has been used to rapidly prepare BCP analogues of known pharmaceuticals, one of which has substantially different pharmacokinetic properties to those of its commercial progenitor.
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Affiliation(s)
- Xiaheng Zhang
- Merck Center for Catalysis at Princeton University, Princeton, NJ, USA
| | - Russell T Smith
- Merck Center for Catalysis at Princeton University, Princeton, NJ, USA
| | - Chip Le
- Merck Center for Catalysis at Princeton University, Princeton, NJ, USA
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119
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Jiang WT, Yang S, Xu MY, Xie XY, Xiao B. Zn-mediated decarboxylative carbagermatranation of aliphatic N-hydroxyphthalimide esters: evidence for an alkylzinc intermediate. Chem Sci 2020; 11:488-493. [PMID: 32874490 PMCID: PMC7439774 DOI: 10.1039/c9sc04288a] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 11/13/2019] [Indexed: 01/10/2023] Open
Abstract
Alkyl nucleophiles synthesized by decarboxylation of the corresponding N-hydroxyphthalimide esters (NHP esters) would inherit the complex structure of natural carboxylic acids and result in useful cross-coupling fragments. Herein, we report the synthesis of alkyl carbagermatranes via Zn-mediated decarboxylation of NHP esters without Ni catalysis or photocatalysis. Mechanistic studies indicate that an alkyl zinc intermediate was involved; however, the generation of alkyl zinc will be inhibited in the presence of Ni. Hence, this study provides valuable resolution to the perplexing problem about whether organozinc was involved in recently emerging catalytic systems of NHP ester-Zn. Meanwhile, alkyl zinc reagents from NHP esters are compatible with aryl/alkyl bromides and iodides; therefore the scope of carbagermatranation in this work precedes that of in situ-generated organozinc from alkyl halides.
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Affiliation(s)
- Wei-Tao Jiang
- Department of Chemistry , University of Science and Technology of China , Hefei 230026 , China .
| | - Shuo Yang
- Department of Chemistry , University of Science and Technology of China , Hefei 230026 , China .
| | - Meng-Yu Xu
- Department of Chemistry , University of Science and Technology of China , Hefei 230026 , China .
| | - Xiu-Ying Xie
- Department of Chemistry , University of Science and Technology of China , Hefei 230026 , China .
| | - Bin Xiao
- Department of Chemistry , University of Science and Technology of China , Hefei 230026 , China .
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120
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Shibutani S, Kodo T, Takeda M, Nagao K, Tokunaga N, Sasaki Y, Ohmiya H. Organophotoredox-Catalyzed Decarboxylative C(sp 3)-O Bond Formation. J Am Chem Soc 2020; 142:1211-1216. [PMID: 31898903 DOI: 10.1021/jacs.9b12335] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
This manuscript reports a visible-light-mediated organosulfide catalysis that enables the decarboxylative coupling between simple aliphatic alcohol and tertiary or secondary alkyl carboxylic acid-derived redox active esters to produce a C(sp3)-O-C(sp3) fragment. Results of the coupling using other heteroatom nucleophiles such as water, amides, and thiols are also described.
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Affiliation(s)
- Shotaro Shibutani
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences , Kanazawa University , Kakuma-machi, Kanazawa 920-1192 , Japan
| | - Taiga Kodo
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences , Kanazawa University , Kakuma-machi, Kanazawa 920-1192 , Japan
| | - Mitsutaka Takeda
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences , Kanazawa University , Kakuma-machi, Kanazawa 920-1192 , Japan
| | - Kazunori Nagao
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences , Kanazawa University , Kakuma-machi, Kanazawa 920-1192 , Japan
| | - Norihito Tokunaga
- Drug Discovery Chemistry Laboratories, Neuroscience Drug Discovery Unit , Takeda Pharmaceutical Company, Ltd. , 2-26-1, Muraoka-Higashi , Fujisawa, Kanagawa 251-8555 , Japan
| | - Yusuke Sasaki
- Drug Discovery Chemistry Laboratories, Neuroscience Drug Discovery Unit , Takeda Pharmaceutical Company, Ltd. , 2-26-1, Muraoka-Higashi , Fujisawa, Kanagawa 251-8555 , Japan
| | - Hirohisa Ohmiya
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences , Kanazawa University , Kakuma-machi, Kanazawa 920-1192 , Japan.,JST, PRESTO , 4-1-8 Honcho , Kawaguchi , Saitama 332-0012 , Japan
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121
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Chen H, Ye Y, Tong W, Fang J, Gong H. Formation of allylated quaternary carbon centers via C-O/C-O bond fragmentation of oxalates and allyl carbonates. Chem Commun (Camb) 2020; 56:454-457. [PMID: 31825428 DOI: 10.1039/c9cc07072a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Disclosed herein emphasizes Fe-promoted cross-electrophile allylation of tertiary alkyl oxalates with allyl carbonates that generates all C(sp3)-quaternary centers. The reaction involves fragmentation of tertiary alkyl oxalate C-O bonds to give tertiary alkyl radical intermediates, addition of the radicals to less hindered alkene terminals, and subsequent cleavage of the allyl C-O bonds. Allylation with 2-aryl substituted allyl carbonates was mediated by Zn/MgCl2, and Fe is used to promote the radical addition efficiency. By introduction of activated alkenes, a three-component radical cascade reaction took place.
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Affiliation(s)
- Haifeng Chen
- School of Materials Science and Engineering, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China.
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122
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Xiao Z, Wang L, Wei J, Ran C, Liang SH, Shang J, Chen GY, Zheng C. Visible-light induced decarboxylative coupling of redox-active esters with disulfides to construct C–S bonds. Chem Commun (Camb) 2020; 56:4164-4167. [PMID: 32207477 DOI: 10.1039/d0cc00451k] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel method has been established for the construction of C–S bonds using redox-active esters with disulfides in the presence of Ru-photoredox catalyst.
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Affiliation(s)
- Zhiwei Xiao
- Center of Cyclotron and PET Radiopharmaceuticals
- Department of Nuclear Medicine and PET/CT-MRI Center
- The First Affiliated Hospital of Jinan University
- 613 West Huangpu Road
- Tianhe District
| | - Lu Wang
- Center of Cyclotron and PET Radiopharmaceuticals
- Department of Nuclear Medicine and PET/CT-MRI Center
- The First Affiliated Hospital of Jinan University
- 613 West Huangpu Road
- Tianhe District
| | - Junjie Wei
- Key Laboratory of Tropical Medicinal Resources of Ministry of Education
- Collaborative Innovation Center of Tropical Biological Resources
- Hainan Normal University
- Hainan
- Haikou 571158
| | - Chongzhao Ran
- Department of Radiology
- Massachusetts General Hospital & Harvard Medical School
- Boston
- USA
| | - Steven H. Liang
- Department of Radiology
- Massachusetts General Hospital & Harvard Medical School
- Boston
- USA
| | - Jingjie Shang
- Center of Cyclotron and PET Radiopharmaceuticals
- Department of Nuclear Medicine and PET/CT-MRI Center
- The First Affiliated Hospital of Jinan University
- 613 West Huangpu Road
- Tianhe District
| | - Guang-Ying Chen
- Key Laboratory of Tropical Medicinal Resources of Ministry of Education
- Collaborative Innovation Center of Tropical Biological Resources
- Hainan Normal University
- Hainan
- Haikou 571158
| | - Chao Zheng
- Key Laboratory of Tropical Medicinal Resources of Ministry of Education
- Collaborative Innovation Center of Tropical Biological Resources
- Hainan Normal University
- Hainan
- Haikou 571158
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123
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Jia J, Lefebvre Q, Rueping M. Reductive coupling of imines with redox-active esters by visible light photoredox organocatalysis. Org Chem Front 2020. [DOI: 10.1039/c9qo01428d] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The direct alkylation of imines with redox-active esters by visible light photoorganocatalysis provides a direct way for accessing α-branched secondary amines which are found in numerous bioactive molecules.
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Affiliation(s)
- Jiaqi Jia
- Institute of Organic Chemistry
- RWTH Aachen
- Aachen
- Germany
| | | | - Magnus Rueping
- Institute of Organic Chemistry
- RWTH Aachen
- Aachen
- Germany
- King Abdullah University of Science and Technology (KAUST)
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124
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Moon PJ, Lundgren RJ. Metal-Catalyzed Ionic Decarboxylative Cross-Coupling Reactions of C(sp3) Acids: Reaction Development, Mechanisms, and Application. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04956] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Patrick J. Moon
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Rylan J. Lundgren
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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125
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Kong D, Moon PJ, Bsharat O, Lundgren RJ. Direct Catalytic Decarboxylative Amination of Aryl Acetic Acids. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912518] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Duanyang Kong
- Department of Chemistry University of Alberta Edmonton Alberta T6G 2G2 Canada
| | - Patrick J. Moon
- Department of Chemistry University of Alberta Edmonton Alberta T6G 2G2 Canada
| | - Odey Bsharat
- Department of Chemistry University of Alberta Edmonton Alberta T6G 2G2 Canada
| | - Rylan J. Lundgren
- Department of Chemistry University of Alberta Edmonton Alberta T6G 2G2 Canada
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126
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Kong D, Moon PJ, Bsharat O, Lundgren RJ. Direct Catalytic Decarboxylative Amination of Aryl Acetic Acids. Angew Chem Int Ed Engl 2019; 59:1313-1319. [DOI: 10.1002/anie.201912518] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/23/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Duanyang Kong
- Department of Chemistry University of Alberta Edmonton Alberta T6G 2G2 Canada
| | - Patrick J. Moon
- Department of Chemistry University of Alberta Edmonton Alberta T6G 2G2 Canada
| | - Odey Bsharat
- Department of Chemistry University of Alberta Edmonton Alberta T6G 2G2 Canada
| | - Rylan J. Lundgren
- Department of Chemistry University of Alberta Edmonton Alberta T6G 2G2 Canada
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127
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Wang X, Han YF, Ouyang XH, Song RJ, Li JH. The photoredox alkylarylation of styrenes with alkyl N-hydroxyphthalimide esters and arenes involving C-H functionalization. Chem Commun (Camb) 2019; 55:14637-14640. [PMID: 31746852 DOI: 10.1039/c9cc07494e] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The In(OTf)3-promoted three-component photoredox alkylarylation of styrenes with alkyl NHP esters and arenes to access alkylated arene derivatives through C-C bond cleavage and C-H functionalization is reported. By utilizing visible-light photoredox catalysis, alkyl N-hydroxyphthalimide esters serving as alkyl carbon-centered radicals and a wide range of arenes (e.g., indoles, pyrrole, and electron-rich arenes) as nucleophiles were used to enable the introduction of various alkyl groups and aryl groups across the C[double bond, length as m-dash]C bonds with excellent selectivity and functional group tolerance.
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Affiliation(s)
- Xia Wang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.
| | - Ya-Fei Han
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.
| | - Xuan-Hui Ouyang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China. and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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128
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Shao X, Zheng Y, Tian L, Martín-Torres I, Echavarren AM, Wang Y. Decarboxylative Csp3–N Bond Formation by Electrochemical Oxidation of Amino Acids. Org Lett 2019; 21:9262-9267. [DOI: 10.1021/acs.orglett.9b03696] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xiaoqing Shao
- Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yue Zheng
- Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Lifang Tian
- Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Inmaculada Martín-Torres
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona
Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona
Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Yahui Wang
- Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
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129
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Feng L, Yang C, Xia W. Visible-Light Promoted Selective Imination of Unactivated C–H Bonds via Copper-nitrene Intermediates for the Synthesis of 2H-Azirines. Org Lett 2019; 21:8323-8327. [DOI: 10.1021/acs.orglett.9b03103] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Liyan Feng
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Chao Yang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Wujiong Xia
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
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130
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Chan CM, Xing Q, Chow YC, Hung SF, Yu WY. Photoredox Decarboxylative C(sp 3)-N Coupling of α-Diazoacetates with Alkyl N-Hydroxyphthalimide Esters for Diversified Synthesis of Functionalized N-Alkyl Hydrazones. Org Lett 2019; 21:8037-8043. [PMID: 31524416 DOI: 10.1021/acs.orglett.9b03020] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein we report a metal-free photocatalytic coupling reaction for the synthesis of structurally and functionally diverse N-alkyl hydrazones from α-diazoacetates and N-alkyl hydroxyphthalimide esters. By employing Rose Bengal as a photocatalyst with yellow LEDs irradiation, over 60 N-alkyl hydrazones were synthesized. Fluorescence quenching analysis and deuterium incorporation experiments reveal that Hantzsch ester serves as both an electron donor and proton source for the reaction. This strategy offers a simple retrosynthetic disconnection for conventionally inaccessible C(sp3)-rich N-alkyl hydrazones.
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Affiliation(s)
- Chun-Ming Chan
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom , Kowloon , Hong Kong
| | - Qi Xing
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom , Kowloon , Hong Kong
| | - Yip-Chi Chow
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom , Kowloon , Hong Kong
| | - Sing-Fung Hung
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom , Kowloon , Hong Kong
| | - Wing-Yiu Yu
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom , Kowloon , Hong Kong
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131
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Cavedon C, Seeberger PH, Pieber B. Photochemical Strategies for Carbon–Heteroatom Bond Formation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901173] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Cristian Cavedon
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
- Department of Chemistry and Biochemistry Freie Universität Berlin Arnimallee 22 14195 Berlin Germany
| | - Peter H. Seeberger
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
- Department of Chemistry and Biochemistry Freie Universität Berlin Arnimallee 22 14195 Berlin Germany
| | - Bartholomäus Pieber
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
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132
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Zhao X, Liu Y, Zhu R, Liu C, Zhang D. Mechanistic Study on the Decarboxylative sp3 C–N Cross-Coupling between Alkyl Carboxylic Acids and Nitrogen Nucleophiles via Dual Copper and Photoredox Catalysis. Inorg Chem 2019; 58:12669-12677. [DOI: 10.1021/acs.inorgchem.9b01477] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xia Zhao
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People’s Republic of China
| | - Yanhong Liu
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People’s Republic of China
| | - Rongxiu Zhu
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People’s Republic of China
| | - Chengbu Liu
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People’s Republic of China
| | - Dongju Zhang
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People’s Republic of China
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133
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Xu R, Xu T, Yang M, Cao T, Liao S. A rapid access to aliphatic sulfonyl fluorides. Nat Commun 2019; 10:3752. [PMID: 31434898 PMCID: PMC6704106 DOI: 10.1038/s41467-019-11805-6] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 08/06/2019] [Indexed: 01/12/2023] Open
Abstract
The past few years have witnessed a fast-growing research interest on the study of sulfonyl fluorides as reactive probes in chemical biology and molecular pharmacology, which raises an urgent need for the development of effective synthetic methods to expand the toolkit. Herein, we present the invention of a facile and general approach for the synthesis of aliphatic sulfonyl fluorides via visible-light-mediated decarboxylative fluorosulfonylethylation. The method is based on abundant carboxylic acid feed stock, applicable to various alkyl carboxylic acids including primary, secondary, and tertiary acids, and is also suitable for the modification of natural products like amino acids, peptides, as well as drugs, forging a rapid, metal-free approach to build sulfonyl fluoride compound libraries of considerable structural diversity. Further diversification of the SO2F-containing products is also demonstrated, which allows for access to a range of pharmaceutically important motifs such as sultam, sulfonate, and sulfonamide. Sulfonyl fluorides are important probes in chemical biology and molecular pharmacology. Here, the authors report a mild visible light-mediated decarboxylative fluorosulfonylethylation for the synthesis of aliphatic sulfonyl fluorides from a wide range of carboxylic acids, including natural products and drug derivatives.
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Affiliation(s)
- Ruting Xu
- Key Laboratory for Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou, 350116, China
| | - Tianxiao Xu
- Key Laboratory for Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou, 350116, China
| | - Mingcheng Yang
- Key Laboratory for Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou, 350116, China
| | - Tianpeng Cao
- Key Laboratory for Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou, 350116, China
| | - Saihu Liao
- Key Laboratory for Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou, 350116, China.
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134
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Tian WF, Hu CH, He KH, He XY, Li Y. Visible-Light Photoredox-Catalyzed Decarboxylative Alkylation of Heteroarenes Using Carboxylic Acids with Hydrogen Release. Org Lett 2019; 21:6930-6935. [DOI: 10.1021/acs.orglett.9b02539] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wan-Fa Tian
- Center for Organic Chemistry, Frontier Institute of Science and Technology and State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, Shaanxi 710054, P. R. China
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, P. R. China
| | - Chun-Hong Hu
- Center for Organic Chemistry, Frontier Institute of Science and Technology and State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, Shaanxi 710054, P. R. China
| | - Ke-Han He
- Center for Organic Chemistry, Frontier Institute of Science and Technology and State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, Shaanxi 710054, P. R. China
| | - Xiao-Ya He
- Center for Organic Chemistry, Frontier Institute of Science and Technology and State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, Shaanxi 710054, P. R. China
| | - Yang Li
- Center for Organic Chemistry, Frontier Institute of Science and Technology and State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, Shaanxi 710054, P. R. China
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135
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Zhao B, Wang M, Shi Z. Single-Electron-Transfer-Induced C(sp 3)-N Couplings via C-C Bond Cleavage of Cycloketoxime Esters. J Org Chem 2019; 84:10145-10159. [PMID: 31313585 DOI: 10.1021/acs.joc.9b01338] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A practical single-electron-transfer-induced selective C(sp3)-N coupling of cycloketoximes with anilines via C-C bond cleavage under copper-catalytic and synergetic photoredox/copper-catalytic reaction systems has been uncovered. These two powerful and simple protocols demonstrated excellent selectivity and good functional group compatibility without any base or ligand control. Preliminary mechanistic experiments indicated that a radical-mediated process was involved in these transformations.
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Affiliation(s)
- Binlin Zhao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China.,College of Science , Nanjing Forestry University , Nanjing 210037 , China
| | - Minyan Wang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China
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136
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Chen H, Liao X. Nickel catalyzed decarboxylative alkylation of aryl triflates with anhydrides. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.05.070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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137
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Patra T, Mukherjee S, Ma J, Strieth‐Kalthoff F, Glorius F. Visible‐Light‐Photosensitized Aryl and Alkyl Decarboxylative Functionalization Reactions. Angew Chem Int Ed Engl 2019; 58:10514-10520. [DOI: 10.1002/anie.201904671] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/28/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Tuhin Patra
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Satobhisha Mukherjee
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Jiajia Ma
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Felix Strieth‐Kalthoff
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Frank Glorius
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
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138
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Patra T, Mukherjee S, Ma J, Strieth‐Kalthoff F, Glorius F. Visible‐Light‐Photosensitized Aryl and Alkyl Decarboxylative Functionalization Reactions. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904671] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Tuhin Patra
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Satobhisha Mukherjee
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Jiajia Ma
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Felix Strieth‐Kalthoff
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Frank Glorius
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
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139
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Yang L, Zhang JY, Duan XH, Gao P, Jiao J, Guo LN. Copper-Catalyzed Cyanoalkylation of Amines via C–C Bond Cleavage: An Approach for C(sp3)–N Bond Formations. J Org Chem 2019; 84:8615-8629. [DOI: 10.1021/acs.joc.9b01084] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lin Yang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Jia-Yu Zhang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Xin-Hua Duan
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Pin Gao
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Jiao Jiao
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Li-Na Guo
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
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140
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Chen H, Sun S, Liao X. Nickel-Catalyzed Decarboxylative Alkenylation of Anhydrides with Vinyl Triflates or Halides. Org Lett 2019; 21:3625-3630. [PMID: 31062981 DOI: 10.1021/acs.orglett.9b01048] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Decarboxylative cross-coupling of aliphatic acid anhydrides with vinyl triflates or halides was accomplished via nickel catalysis. This methodology works well with a broad array of substrates and features abundant functional group tolerance. Notably, our approach addresses the issue of safe and environmental installation of methyl or ethyl group into molecular scaffolds. The method possesses high chemoselectivity toward alkyl groups when aliphatic/aromatic mixed anhydrides are involved. Furthermore, diverse ketones could be modified with our strategy.
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Affiliation(s)
- Hui Chen
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Beijing Advanced Innovation Center for Structural Biology , Tsinghua University , Beijing 100084 , China
| | - Shuhao Sun
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Beijing Advanced Innovation Center for Structural Biology , Tsinghua University , Beijing 100084 , China
| | - Xuebin Liao
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Beijing Advanced Innovation Center for Structural Biology , Tsinghua University , Beijing 100084 , China
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141
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Hossain A, Bhattacharyya A, Reiser O. Copper’s rapid ascent in visible-light photoredox catalysis. Science 2019; 364:364/6439/eaav9713. [DOI: 10.1126/science.aav9713] [Citation(s) in RCA: 276] [Impact Index Per Article: 55.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 03/27/2019] [Indexed: 12/12/2022]
Abstract
Visible-light photoredox catalysis offers a distinct activation mode complementary to thermal transition metal catalyzed reactions. The vast majority of photoredox processes capitalizes on precious metal ruthenium(II) or iridium(III) complexes that serve as single-electron reductants or oxidants in their photoexcited states. As a low-cost alternative, organic dyes are also frequently used but in general suffer from lower photostability. Copper-based photocatalysts are rapidly emerging, offering not only economic and ecological advantages but also otherwise inaccessible inner-sphere mechanisms, which have been successfully applied to challenging transformations. Moreover, the combination of conventional photocatalysts with copper(I) or copper(II) salts has emerged as an efficient dual catalytic system for cross-coupling reactions.
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142
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Yang S, Chen M, Tang P. Visible‐Light Photoredox‐Catalyzed and Copper‐Promoted Trifluoromethoxylation of Arenediazonium Tetrafluoroborates. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901447] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shaoqiang Yang
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
| | - Miao Chen
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
| | - Pingping Tang
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
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143
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Yang S, Chen M, Tang P. Visible-Light Photoredox-Catalyzed and Copper-Promoted Trifluoromethoxylation of Arenediazonium Tetrafluoroborates. Angew Chem Int Ed Engl 2019; 58:7840-7844. [PMID: 30964599 DOI: 10.1002/anie.201901447] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Indexed: 01/16/2023]
Abstract
We report the development of photoredox-catalyzed and copper-promoted trifluoromethoxylation of arenediazonium tetrafluoroborates, with trifluoromethyl arylsulfonate (TFMS) as the trifluoromethoxylation reagent. This new method takes advantage of visible-light photoredox catalysis to generate the aryl radical under mild conditions, combined with copper-promoted selective trifluoromethoxylation. The reaction is scalable, tolerates a wide range of functional groups, and proceeds regioselectively under mild reaction conditions. Furthermore, mechanistic studies suggested that a Cs[Cu(OCF3 )2 ] intermediate might be generated during the reaction.
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Affiliation(s)
- Shaoqiang Yang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Miao Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Pingping Tang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
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144
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Montesinos‐Magraner M, Costantini M, Ramírez‐Contreras R, Muratore ME, Johansson MJ, Mendoza A. General Cyclopropane Assembly by Enantioselective Transfer of a Redox‐Active Carbene to Aliphatic Olefins. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814123] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | - Matteo Costantini
- Dept. of Organic ChemistryStockholm University, Arrhenius Laboratory 10691 Stockholm Sweden
| | | | - Michael E. Muratore
- Cardiovascular, Renal and Metabolism IMED Biotech UnitAstraZeneca Gothenburg 43183 Mölndal Sweden
| | - Magnus J. Johansson
- Cardiovascular, Renal and Metabolism IMED Biotech UnitAstraZeneca Gothenburg 43183 Mölndal Sweden
| | - Abraham Mendoza
- Dept. of Organic ChemistryStockholm University, Arrhenius Laboratory 10691 Stockholm Sweden
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145
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Dai GL, Lai SZ, Luo Z, Tang ZY. Selective Syntheses of Z-Alkenes via Photocatalyzed Decarboxylative Coupling of N-Hydroxyphthalimide Esters with Terminal Arylalkynes. Org Lett 2019; 21:2269-2272. [DOI: 10.1021/acs.orglett.9b00558] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Guo-Li Dai
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Shu-Zhen Lai
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Zhuangzhu Luo
- School of Chemical Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China
| | - Zhen-Yu Tang
- School of Chemical Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
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146
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Montesinos-Magraner M, Costantini M, Ramírez-Contreras R, Muratore ME, Johansson MJ, Mendoza A. General Cyclopropane Assembly by Enantioselective Transfer of a Redox-Active Carbene to Aliphatic Olefins. Angew Chem Int Ed Engl 2019; 58:5930-5935. [PMID: 30675970 DOI: 10.1002/anie.201814123] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Indexed: 12/30/2022]
Abstract
Asymmetric cyclopropane synthesis currently requires bespoke strategies, methods, substrates, and reagents, even when targeting similar compounds. This approach slows down discovery and limits available chemical space. Introduced herein is a practical and versatile diazocompound and its performance in the first unified asymmetric synthesis of functionalized cyclopropanes. The redox-active leaving group in this reagent enhances the reactivity and selectivity of geminal carbene transfer. This effect allowed the asymmetric cyclopropanation of various olefins, including unfunctionalized aliphatic alkenes, that enables the three-step total synthesis of (-)-dictyopterene A. This unified synthetic approach delivers high enantioselectivities that are independent of the stereoelectronic properties of the functional groups transferred. Our results demonstrate that orthogonally differentiated diazocompounds are viable and advantageous equivalents of single-carbon chirons.
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Affiliation(s)
- Marc Montesinos-Magraner
- Dept. of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 10691, Stockholm, Sweden
| | - Matteo Costantini
- Dept. of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 10691, Stockholm, Sweden
| | | | - Michael E Muratore
- Cardiovascular, Renal and Metabolism IMED Biotech Unit, AstraZeneca Gothenburg, 43183, Mölndal, Sweden
| | - Magnus J Johansson
- Cardiovascular, Renal and Metabolism IMED Biotech Unit, AstraZeneca Gothenburg, 43183, Mölndal, Sweden
| | - Abraham Mendoza
- Dept. of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 10691, Stockholm, Sweden
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147
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Karthik S, Sreedharan R, Gandhi T. A Straightforward Metal-Free and Mild Base Promoted Amidation and Transesterification via
Acyl C-O bond Cleavage-An Expedite Synthesis of Aromatic Amides and Esters. ChemistrySelect 2019. [DOI: 10.1002/slct.201803105] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shanmugam Karthik
- Department of Chemistry, School of Advanced Sciences; VIT University,Vellore; Tamil Nadu - 632014 India
| | - Ramdas Sreedharan
- Department of Chemistry, School of Advanced Sciences; VIT University,Vellore; Tamil Nadu - 632014 India
| | - Thirumanavelan Gandhi
- Department of Chemistry, School of Advanced Sciences; VIT University,Vellore; Tamil Nadu - 632014 India
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148
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Tian L, Gao S, Wang R, Li Y, Tang C, Shi L, Fu J. Copper-catalyzed ring-opening C(sp3)–N coupling of cycloketone oxime esters: access to 1°, 2° and 3° alkyl amines. Chem Commun (Camb) 2019; 55:5347-5350. [DOI: 10.1039/c9cc02030f] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Access to 1°, 2° and 3° alkyl amines through copper-catalyzed C(sp3)–N coupling of cycloketone oxime esters was realized.
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Affiliation(s)
- Li Tian
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Shuangqiu Gao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Rui Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Yang Li
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Chunlin Tang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Lili Shi
- Key Laboratory of Chemical Genomics
- School of Chemical Biology and Biotechnology
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
| | - Junkai Fu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
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149
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Min QQ, Li N, Chen GL, Liu F. Copper-catalysed C(sp3)–N coupling initiated by selective C–C bond cleavage of cyclobutanone oxime esters. Org Chem Front 2019. [DOI: 10.1039/c9qo00235a] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A mild and practical protocol is developed for the synthesis of functionalized 4-(arylamino)butanenitriles via selective C–C bond cleavage and subsequent C(sp3)–N coupling.
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Affiliation(s)
- Qing-Qiang Min
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Na Li
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Guang-Le Chen
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Feng Liu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
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150
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Zhu ZF, Zhang MM, Liu F. Radical alkylation of isocyanides with amino acid-/peptide-derived Katritzky salts via photoredox catalysis. Org Biomol Chem 2019; 17:1531-1534. [DOI: 10.1039/c8ob02786b] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A mild and practical protocol is developed for the synthesis of functionalized phenanthridines via C(sp3)–N bond activation upon visible-light irradiation.
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Affiliation(s)
- Ze-Fan Zhu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Miao-Miao Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Feng Liu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
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