1
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Dutta A, Jeganmohan M. Palladium-Catalyzed C-H Functionalization of Aryl Acetamides and Benzoquinones: Synthesis of Substituted Aryl Quinones. J Org Chem 2022; 87:13154-13167. [PMID: 36094897 DOI: 10.1021/acs.joc.2c01625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient synthesis of aryl-substituted quinones via Pd(II)-catalyzed C-H functionalization of less expensive and abundant benzoquinones with aryl acetamides is demonstrated. An auxiliary ligand N,N-bidentate-directing group 8-aminoquinoline plays a crucial role in the success of the reaction. A broad range of substituted phenyl acetamides including commercially available drug molecules were examined and also found to be highly compatible with quinones. The aryl-substituted quinones were also easily converted into aryl-substituted hydroquinone derivatives. A plausible reaction mechanism was proposed to account for the selective distal C-H bond functionalization.
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Affiliation(s)
- Ananya Dutta
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600036, India
| | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600036, India
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2
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Luo D, Hu L, Gao T, Zhang X, Xiong Y. Synthesis of Altenuene Backbones through Iodine(III)-Participated Umpolung Diesterification and Insights into the General [1,5]-H Shift in para-Dearomatization of Phenols via Quantum Chemical Calculations. J Org Chem 2022; 87:5065-5075. [PMID: 35377643 DOI: 10.1021/acs.joc.1c02915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Through PhI(OAc)2-oxidized dearomatization and diesterification of 3'-hydroxy-[1,1'-biphenyl]-2-carboxylic acids, a series of polycyclic compounds possessing an altenuene backbone were obtained in moderate to good yields. The Umpolung diesterification reaction was completed under mild reaction conditions without an additional nucleophilic reagent. This work offers a concise method for the synthesis of diverse natural altenuene analogues. The mechanism was proposed, and the [1,5]-H shift was studied in isomerization from the ketone-form structure to a phenol employing computational studies.
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Affiliation(s)
- Dan Luo
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, China
| | - Liangzhen Hu
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, China
| | - Tianyong Gao
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, China
| | - Xiaohui Zhang
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, China
| | - Yan Xiong
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China.,School of Chemical and Environmental Engineering, and Collaborative Innovation Center for High Value Transformation of Coal Chemical Process By-products, Xinjiang Institute of Engineering, Xinjiang 830091, China
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3
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Yang W, Zhang H, Liu Y, Tang C, Xu X, Liu J. Rh( iii)-catalyzed synthesis of dibenzo[ b, d]pyran-6-ones from aryl ketone O-acetyl oximes and quinones via C–H activation and C–C bond cleavage. RSC Adv 2022; 12:14435-14438. [PMID: 35702227 PMCID: PMC9096810 DOI: 10.1039/d2ra02074b] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/05/2022] [Indexed: 12/17/2022] Open
Abstract
A redox-neutral synthesis of dibenzo[b,d]pyran-6-ones from aryl ketone O-acetyl oximes and quinones has been realized via Rh(iii)-catalyzed cascade C–H activation annulation. A possible Rh(iii)–Rh(v)–Rh(iii) mechanism involving an unprecedented β-C elimination step was proposed. A novel procedure for the synthesis of dibenzo[b,d]pyran-6-ones via Rh(iii)-catalyzed C–H activation and C–C bond cleavage is described.![]()
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Affiliation(s)
- Wei Yang
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
- Gongqing Institute of Science and Technology, Gongqing 332020, China
| | - Haonan Zhang
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Yu Liu
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
- Gongqing Institute of Science and Technology, Gongqing 332020, China
| | - Cuiman Tang
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Xiaohui Xu
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Jiaqi Liu
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
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4
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Wang S, Wang JS, Le Z, Ying J, Wu XF. Palladium-catalyzed carbonylative synthesis of aryl esters from p-benzoquinones and aryl triflates. Org Biomol Chem 2021; 19:7353-7356. [PMID: 34387297 DOI: 10.1039/d1ob01400e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A palladium-catalyzed dicarbonylation of p-benzoquinones with aryl triflates has been developed. Using Cr(CO)6 as the CO source, the reaction proceeds smoothly and efficiently to give a series of aryl esters in moderate to good yields (up to 90%).
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Affiliation(s)
- Siqi Wang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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5
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Gu Q, Wu ZJ, You SL. Recent Advances in Enantioselective Direct C–H Addition to Carbonyls and Michael Acceptors. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200352] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Qing Gu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
| | - Zhi-Jie Wu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
- School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, P. R. China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
- School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, P. R. China
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6
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Wood JM, de Carvalho RL, da Silva Júnior EN. The Different Facets of Metal-Catalyzed C-H Functionalization Involving Quinone Compounds. CHEM REC 2021; 21:2604-2637. [PMID: 33415843 DOI: 10.1002/tcr.202000163] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/17/2020] [Indexed: 12/15/2022]
Abstract
Metal-catalysed C-H functionalization has emerged as a powerful platform for the derivatization of quinones, a class of compounds with wide-ranging applications. This review organises and discusses the evolution of this chemistry from early Fujiwara-Moritani reactions, through to modern directing-group assisted C-H functionalization processes, including C-H functionalization reactions directed by the quinone ring itself. Mechanistic details of these reactions are provided to afford insight into how the unique reactivity of quinoidal compounds has been leveraged in each example.
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Affiliation(s)
- James M Wood
- The Ferrier Research Institute, Victoria University of Wellington, Lower Hutt, 5010, New Zealand
| | - Renato L de Carvalho
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | - Eufrânio N da Silva Júnior
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, 31270-901, Brazil
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7
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Li G, Yan X, Jiang J, Liang H, Zhou C, Wang J. Chiral Bicyclo[2.2.2]octane-Fused CpRh Complexes: Synthesis and Potential Use in Asymmetric C-H Activation. Angew Chem Int Ed Engl 2020; 59:22436-22440. [PMID: 32840946 DOI: 10.1002/anie.202010489] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Indexed: 12/19/2022]
Abstract
A new class of chiral cyclopentadienyl rhodium(I) complexes (CpRhI ) bearing C2 -symmetric chiral bridged-ring-fused Cp ligands was prepared. The complexes were successfully applied to the asymmetric C-H activation reaction of N-methoxybenzamides with quinones, affording a series of chiral hydrophenanthridinones in up to 82 % yield with up to 99 % ee. Interestingly, structure analysis reveals that the side wall of the optimal chiral CpRhI catalyst is vertically more extended, horizontally less extended, and closer to the metal center in comparison with the classic binaphthyl and spirobiindanyl CpRhI complexes, and may thus account for its superior catalytic performance.
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Affiliation(s)
- Guozhu Li
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Xiaoqiang Yan
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Jijun Jiang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Hao Liang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Chao Zhou
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Jun Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
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8
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Li G, Yan X, Jiang J, Liang H, Zhou C, Wang J. Chiral Bicyclo[2.2.2]octane‐Fused CpRh Complexes: Synthesis and Potential Use in Asymmetric C−H Activation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010489] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Guozhu Li
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Xiaoqiang Yan
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Jijun Jiang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Hao Liang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Chao Zhou
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Jun Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
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9
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Guo S, Liu Y, Wang Y, Zhang X, Fan X. Construction of Bridged Carbocycles and Heterocycles via Rh(III)-Catalyzed C-H Alkylation/Michael Addition of 2-Arylindoles with Quinone Monoacetals. J Org Chem 2020; 85:8910-8922. [PMID: 32539389 DOI: 10.1021/acs.joc.0c00774] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A rhodium-catalyzed formal [4 + 5] annulation reaction of 2-arylindoles with quinone monoacetals for the selective preparation of bridged nine-membered carbocyclic and heterocyclic compounds is developed. When 2-aryl substituted indoles are employed, this annulation reaction affords bridged nine-membered carbocyclic compounds with excellent indolyl C3 selectivity. On the other hand, with 2-aryl-3-substituted indoles as the substrates, bridged nine-membered heterocyclic compounds are exclusively formed via N1 annulation. Further transformations of the obtained products into new bridged compounds showcase the synthetic potential of this protocol.
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Affiliation(s)
- Shenghai Guo
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Yangfan Liu
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Yaping Wang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Xinying Zhang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Xuesen Fan
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
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10
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Guo S, Liu Y, Zhang X, Fan X. Iridium‐Catalyzed Oxidative Annulation of 2‐Arylindoles with Benzoquinone Leading to Indolo[1,2‐
f
]phenanthridin‐6‐ols. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000449] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shenghai Guo
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical EngineeringHenan Normal University, Xinxiang Henan 453007 People's Republic of China
| | - Yangfan Liu
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical EngineeringHenan Normal University, Xinxiang Henan 453007 People's Republic of China
| | - Xinying Zhang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical EngineeringHenan Normal University, Xinxiang Henan 453007 People's Republic of China
| | - Xuesen Fan
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical EngineeringHenan Normal University, Xinxiang Henan 453007 People's Republic of China
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11
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Kharma A, Jacob C, Bozzi ÍAO, Jardim GAM, Braga AL, Salomão K, Gatto CC, Silva MFS, Pessoa C, Stangier M, Ackermann L, da Silva Júnior EN. Electrochemical Selenation/Cyclization of Quinones: A Rapid, Green and Efficient Access to Functionalized Trypanocidal and Antitumor Compounds. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000216] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Ammar Kharma
- Institute of Exact Sciences, Department of Chemistry Federal University of Minas Gerais, UFMG 31270‐901 Belo Horizonte MG Brazil
- Division of Bioorganic Chemistry School of Pharmacy University of Saarland 66123 Saarbruecken Germany
| | - Claus Jacob
- Division of Bioorganic Chemistry School of Pharmacy University of Saarland 66123 Saarbruecken Germany
| | - Ícaro A. O. Bozzi
- Institute of Exact Sciences, Department of Chemistry Federal University of Minas Gerais, UFMG 31270‐901 Belo Horizonte MG Brazil
| | - Guilherme A. M. Jardim
- Department of Chemistry Federal University of Santa Catarina 88040‐900 Florianópolis SC Brazil
| | - Antonio L. Braga
- Department of Chemistry Federal University of Santa Catarina 88040‐900 Florianópolis SC Brazil
| | - Kelly Salomão
- Oswaldo Cruz Institute FIOCRUZ 21045‐900 Rio de Janeiro RJ Brazil
| | - Claudia C. Gatto
- Institute of Chemistry University of Brasilia 70904‐970 Brasilia DF Brazil
| | - Maria Francilene S. Silva
- Department of Physiology and Pharmacology School of Pharmacy Federal University of Ceará 60430‐270 Fortaleza CE Brazil
| | - Claudia Pessoa
- Department of Physiology and Pharmacology School of Pharmacy Federal University of Ceará 60430‐270 Fortaleza CE Brazil
| | - Maximilian Stangier
- Institut für Organische und Biomolekulare Chemie Georg‐August‐Universität Tammannstraße 2 37077 Göttingen Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie Georg‐August‐Universität Tammannstraße 2 37077 Göttingen Germany
| | - Eufrânio N. da Silva Júnior
- Institute of Exact Sciences, Department of Chemistry Federal University of Minas Gerais, UFMG 31270‐901 Belo Horizonte MG Brazil
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12
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Yan X, Zhao P, Liang H, Xie H, Jiang J, Gou S, Wang J. Rhodium(III)-Catalyzed Asymmetric C–H Activation of N-Methoxybenzamide with Quinone and Its Application in the Asymmetric Synthesis of a Dihydrolycoricidine Analogue. Org Lett 2020; 22:3219-3223. [DOI: 10.1021/acs.orglett.0c01002] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaoqiang Yan
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Peng Zhao
- School of Chemistry and Chemical Engineering, State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, P. R. China
| | - Hao Liang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Hui Xie
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Jijun Jiang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Shaohua Gou
- School of Chemistry and Chemical Engineering, State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, P. R. China
| | - Jun Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
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13
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Matsuda T, Izutsu T, Hashimoto M. Rhodium(I)-Catalyzed Arylative Annulation of β-Alkynyl Ketones for Preparation of Fused Aromatics. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901481] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Takanori Matsuda
- Department of Applied Chemistry; Tokyo University of Science; 1-3 Kagurazaka, Shinjuku-ku 162-8601 Tokyo Japan
| | - Takashi Izutsu
- Department of Applied Chemistry; Tokyo University of Science; 1-3 Kagurazaka, Shinjuku-ku 162-8601 Tokyo Japan
| | - Masaru Hashimoto
- Department of Applied Chemistry; Tokyo University of Science; 1-3 Kagurazaka, Shinjuku-ku 162-8601 Tokyo Japan
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14
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Chaudhary B, Kulkarni N, Sharma S. Rhodium(iii)-catalyzed synthesis of 3-trifluoromethylindanones from N-methoxybenzamides via C–H activation and Claisen/retro-Claisen reaction. Org Chem Front 2020. [DOI: 10.1039/d0qo00330a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An efficient synthesis of 3-trifluoromethylindanones via C–H annulation of N-methoxybenzamides with β-trifluoromethyl-α,β-unsaturated ketones under Rh(iii)-catalysis is described.
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Affiliation(s)
- Bharatkumar Chaudhary
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- Ahmedabad (NIPER-A)
- Gandhinagar
- India
| | - Neeraj Kulkarni
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- Ahmedabad (NIPER-A)
- Gandhinagar
- India
| | - Satyasheel Sharma
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- Ahmedabad (NIPER-A)
- Gandhinagar
- India
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15
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Huang Y, Lyu X, Song H, Wang Q. Sulfoxonium Ylides as Carbene Precursors: Rhodium(III)‐Catalyzed Sequential C−H Functionalization, Selective Enol Oxygen‐Atom Nucleophilic Addition, and Hydrolysis. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900861] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yuanqiong Huang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of ChemistryNankai University Tianjin 300071 People's Republic of China
| | - Xueli Lyu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of ChemistryNankai University Tianjin 300071 People's Republic of China
| | - Hongjian Song
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of ChemistryNankai University Tianjin 300071 People's Republic of China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of ChemistryNankai University Tianjin 300071 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300071 People's Republic of China
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16
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Guo S, Liu Y, Zhao L, Zhang X, Fan X. Rhodium-Catalyzed Selective Oxidative (Spiro)annulation of 2-Arylindoles by Using Benzoquinone as a C2 or C1 Synthon. Org Lett 2019; 21:6437-6441. [PMID: 31386384 DOI: 10.1021/acs.orglett.9b02336] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Rhodium-catalyzed substrate-tunable oxidative annulation and spiroannulation reactions of 2-arylindoles with benzoquinone leading to 9H-dibenzo[a,c]carbazol-3-ols and new spirocyclic products are reported. Intriguingly, with 2-aryl-substituted indoles, benzoquinone could act as a C2 synthon to afford dibenzo[a,c]carbazoles. On the contrary, when 2-aryl-3-substituted indoles were used, benzoquinone switched to act as a C1 synthon to furnish spirocyclic compounds. In addition, further transformations of the obtained products demonstrate the synthetic utility of the present protocol.
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Affiliation(s)
- Shenghai Guo
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , China
| | - Yangfan Liu
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , China
| | - Lu Zhao
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , China
| | - Xinying Zhang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , China
| | - Xuesen Fan
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , China
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17
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Yang W, Wang J, Wang H, Li L, Guan Y, Xu X, Yu D. Rhodium(iii)-catalyzed three-component cascade synthesis of 6H-benzo[c]chromenes through C-H activation. Org Biomol Chem 2018; 16:6865-6869. [PMID: 30229801 DOI: 10.1039/c8ob01938j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A three-component cascade reaction is described that provides concise access to 6H-benzo[c]chromenes via Rh(iii)-catalyzed annulation of aryl ketone O-acyloximes, quinones and acetone. Acetone acts as a co-solvent and as a reactant. This reaction shows high efficiency, atom- and step-economy, good substrate scope, excellent functional group compatibility and gives the products in good yields.
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Affiliation(s)
- Wei Yang
- College of Chemistry Engineering, Northeast Electric Power University, Jilin 132012, China.
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18
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Guo S, Sun L, Wang F, Zhang X, Fan X. Rh(III)-Catalyzed Oxidative Annulation of Isoquinolones with Diazoketoesters Featuring an in Situ Deacylation: Synthesis of Isoindoloisoquinolones and Their Transformation to Rosettacin Analogues. J Org Chem 2018; 83:12034-12043. [PMID: 30156100 DOI: 10.1021/acs.joc.8b01982] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel and practical procedure for the preparation of isoindolo[2,1- b]isoquinoline-7-carboxylate derivatives through a Rh(III)-catalyzed oxidative [4 + 1] cycloaddition of isoquinolones with diazoketoesters followed by an in situ deacylation reaction is disclosed. Intriguingly, the title compounds could be easily converted into isoindolo[2,1- b]isoquinolin-5(7 H)-ones via de-esterification, which are rosettacin analogues and frequently found in various natural alkaloids and synthetic drug molecules.
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Affiliation(s)
- Shenghai Guo
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , P. R. China
| | - Lincong Sun
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , P. R. China
| | - Fang Wang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , P. R. China
| | - Xinying Zhang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , P. R. China
| | - Xuesen Fan
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang , Henan 453007 , P. R. China
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19
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Shibata T, Kurita H, Onoda S, Kanyiva KS. Ir-Catalyzed Enantioselective Intra- and Intermolecular Formal C−H Conjugate Addition to β-Substituted α,β-Unsaturated Esters. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800257] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Takanori Shibata
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering; Waseda University; 3-4-1 Okubo, Shinjuku Tokyo 169-8555 Japan
| | - Hisaki Kurita
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering; Waseda University; 3-4-1 Okubo, Shinjuku Tokyo 169-8555 Japan
| | - Sahoko Onoda
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering; Waseda University; 3-4-1 Okubo, Shinjuku Tokyo 169-8555 Japan
| | - Kyalo Stephen Kanyiva
- Global Center for Science and Engineering, School of Advanced Science and Engineering; Waseda University; 3-4-1 Okubo, Shinjuku Tokyo 169-8555 Japan
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20
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Tanaka K, Kishimoto M, Hoshino Y, Honda K. Temperature-controlled divergent synthesis of 4-alkoxy- or 4-alkenyl-chromanes via inverse electron-demand cycloaddition with in situ generated ortho-quinone methides. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.090] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Mandal A, Selvakumar J, Dana S, Mukherjee U, Baidya M. A Cross-Dehydrogenative Annulation Strategy towards Synthesis of Polyfluorinated Phenanthridinones with Copper. Chemistry 2018; 24:3448-3454. [PMID: 29381235 DOI: 10.1002/chem.201800337] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Indexed: 11/07/2022]
Abstract
The first cross-dehydrogenative annulation of (hetero)aromatic amides with polyfluoro(hetero)arenes is presented. This operationally simple oxidative annulation process is mediated by inexpensive copper salt, accommodates a wide range of substrates with exquisite chemo- and regioselectivity profile, and produces demanding polyfluorinated phenanthridinones in high yields (up to 92 %). Using alkenyl amides under identical conditions, the synthesis of polyfluorinated 2-quinolones has also been accomplished. Given the importance of fluorinated heterocycles in the pharmaceutical industry and drug discovery, this work is highly significant.
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Affiliation(s)
- Anup Mandal
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Jayaraman Selvakumar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Suman Dana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Upasana Mukherjee
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
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22
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Dong JL, Wei PS, Yu LSH, Xie JW. Chemoselective Synthesis of Structurally Diverse 3,4-Dihydroquinazoline-2(1H)-thiones and 4H-Benzo[d][1,3]thiazines. J Org Chem 2018; 83:2219-2226. [PMID: 29363980 DOI: 10.1021/acs.joc.7b03120] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient, mild, and substrate/catalyst-controlled chemoselective reaction of o-isothiocyanato-(E)-cinnamaldehyde with amines has been established, producing three types of six-membered heterocycles: 2-(4H-benzo[d][1,3]thiazin-4-yl)acetaldehydes, 2-(2-thioxo-1,2,3,4-tetrahydroquinazolin-4-yl)acetaldehydes, and (E)-4-(2-methoxyvinyl)-4H-benzo[d][1,3]thiazines. The reaction scopes were quite broad and excellent yield was achieved. This method is extremely efficient and practical and can be conducted on a gram-scale with slightly inferior reactivity under catalyst-free conditions at low cost, making it an ideal alternative to existing methods.
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Affiliation(s)
- Jian-Lian Dong
- Department of Chemistry and Life Science, Zhejiang Normal University , Jinhua 321004, P. R. China
| | - Pei-Shun Wei
- Department of Chemistry and Life Science, Zhejiang Normal University , Jinhua 321004, P. R. China
| | - Li-Si-Han Yu
- Department of Chemistry and Life Science, Zhejiang Normal University , Jinhua 321004, P. R. China
| | - Jian-Wu Xie
- Department of Chemistry and Life Science, Zhejiang Normal University , Jinhua 321004, P. R. China
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23
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Xu Y, Zheng G, Yang X, Li X. Rhodium(iii)-catalyzed chemodivergent annulations between N-methoxybenzamides and sulfoxonium ylides via C–H activation. Chem Commun (Camb) 2018; 54:670-673. [DOI: 10.1039/c7cc07753j] [Citation(s) in RCA: 154] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Rhodium-catalyzed and acid-controlled chemodivergent annulations between N-methoxybenzamides and sulfoxonium ylides have been realized.
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Affiliation(s)
- Youwei Xu
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Guangfan Zheng
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Xifa Yang
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Xingwei Li
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
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24
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Xiong H, Xu S, Sun S, Cheng J. Cp*Rh(iii)-catalyzed annulation of N-methoxybenzamide with 1,4,2-bisoxazol-5-one toward 2-aryl quinazolin-4(3H)-one derivatives. Org Chem Front 2018. [DOI: 10.1039/c8qo00800k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A [Cp*RhIII]-catalyzed annulation of N-methoxybenzamide with 1,4,2-bisoxazol-5-one was developed, affording a series of 2-aryl quinazolin-4(3H)-one derivatives.
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Affiliation(s)
- Hao Xiong
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- and Institute for Natural and Synthetic Organic Chemistry
- Changzhou University
- Changzhou 213164
| | - Shengbo Xu
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- and Institute for Natural and Synthetic Organic Chemistry
- Changzhou University
- Changzhou 213164
| | - Song Sun
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- and Institute for Natural and Synthetic Organic Chemistry
- Changzhou University
- Changzhou 213164
| | - Jiang Cheng
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- and Institute for Natural and Synthetic Organic Chemistry
- Changzhou University
- Changzhou 213164
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25
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Feng Y, Li Y, Yu Y, Wang L, Cui X. Iridium-catalysed direct sulfamidation of quinazolinones. RSC Adv 2018; 8:8450-8454. [PMID: 35539849 PMCID: PMC9078565 DOI: 10.1039/c8ra00524a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 02/03/2018] [Indexed: 12/14/2022] Open
Abstract
Ir-catalysed direct sulfamidation of quinazolinones has been achieved. A series of ortho-diamided quinazolinones were obtained in up to 96% yields. This transformation could proceed smoothly with a low catalyst loading under mild conditions with nitrogen released as the sole byproduct. This approach potentially provides an environmentally benign sulfamidation process for atom/step economic syntheses of useful pharmaceutical molecules or important building blocks. An Ir-catalysed direct sulfamidation of quinazolinones has been achieved to construct a series of ortho-diamided quinazolinones in excellent yields, and nitrogen was released as the sole byproduct.![]()
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Affiliation(s)
- Yadong Feng
- Engineering Research Center of Molecular Medicine of Ministry of Education
- Key Laboratory of Fujian Molecular Medicine
- Key Laboratory of Xiamen Marine and Gene Drugs
- School of Biomedical Sciences
- Huaqiao University
| | - Yudong Li
- Engineering Research Center of Molecular Medicine of Ministry of Education
- Key Laboratory of Fujian Molecular Medicine
- Key Laboratory of Xiamen Marine and Gene Drugs
- School of Biomedical Sciences
- Huaqiao University
| | - Yunliang Yu
- Engineering Research Center of Molecular Medicine of Ministry of Education
- Key Laboratory of Fujian Molecular Medicine
- Key Laboratory of Xiamen Marine and Gene Drugs
- School of Biomedical Sciences
- Huaqiao University
| | - Lianhui Wang
- Engineering Research Center of Molecular Medicine of Ministry of Education
- Key Laboratory of Fujian Molecular Medicine
- Key Laboratory of Xiamen Marine and Gene Drugs
- School of Biomedical Sciences
- Huaqiao University
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine of Ministry of Education
- Key Laboratory of Fujian Molecular Medicine
- Key Laboratory of Xiamen Marine and Gene Drugs
- School of Biomedical Sciences
- Huaqiao University
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26
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Shyyka OY, Martyak RL, Tupychak MA, Pokhodylo NT, Obushak MD. Facile synthetic route to benzo[c]chromenones and thieno[2,3-c]chromenones. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1380833] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Olga Ya. Shyyka
- Department of Organic Chemistry, Ivan Franko National University of Lviv, Lviv, Ukraine
| | - Roman L. Martyak
- Department of Organic Chemistry, Ivan Franko National University of Lviv, Lviv, Ukraine
| | - Mykola A. Tupychak
- Department of Organic Chemistry, Ivan Franko National University of Lviv, Lviv, Ukraine
| | - Nazariy T. Pokhodylo
- Department of Organic Chemistry, Ivan Franko National University of Lviv, Lviv, Ukraine
| | - Mykola D. Obushak
- Department of Organic Chemistry, Ivan Franko National University of Lviv, Lviv, Ukraine
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27
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Vijayan A, Jumaila CU, Radhakrishnan KV. Rhodium(III)-Catalyzed C−H Activation of O
-Acetyl Ketoximes/N
-Methoxybenzamides toward the Synthesis of Isoquinoline/Isoquinolone-Fused Bicycles. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700377] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Ajesh Vijayan
- Academy of Scientific and Innovative Research (AcSIR); CSIR-NIIST; Thiruvananthapuram 695019 India
- Organic chemistry section; CSIR-National Institute for Interdisciplinary Science and Technology; Thiruvananthapuram 695019 India
| | - Choorappulan Ummu Jumaila
- Organic chemistry section; CSIR-National Institute for Interdisciplinary Science and Technology; Thiruvananthapuram 695019 India
| | - Kokkuvayil Vasu Radhakrishnan
- Academy of Scientific and Innovative Research (AcSIR); CSIR-NIIST; Thiruvananthapuram 695019 India
- Organic chemistry section; CSIR-National Institute for Interdisciplinary Science and Technology; Thiruvananthapuram 695019 India
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28
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Kumar Y, Jaiswal Y, Shaw M, Kumar A. Metal-Free Catalyst-Controlled Chemoselective Synthesis of Aryl α
-Ketoesters and Primary α
-Ketoamides from Aryl Acetimidates. ChemistrySelect 2017. [DOI: 10.1002/slct.201701322] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yogesh Kumar
- Department of Chemistry; Indian Institute of Technology Patna, Bihta; 801103 Bihar India
| | - Yogesh Jaiswal
- Department of Chemistry; Indian Institute of Technology Patna, Bihta; 801103 Bihar India
| | - Mukta Shaw
- Department of Chemistry; Indian Institute of Technology Patna, Bihta; 801103 Bihar India
| | - Amit Kumar
- Department of Chemistry; Indian Institute of Technology Patna, Bihta; 801103 Bihar India
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29
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Magwenzi FN, Khanye SD, Veale CG. Unexpected transformations of 3-(bromoacetyl)coumarin provides new evidence for the mechanism of thiol mediated dehalogenation of α-halocarbonyls. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.01.082] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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30
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Nealmongkol P, Calmes J, Ruchirawat S, Thasana N. Synthesis of phenanthridinones using Cu- or Pd-mediated C N bond formation. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.12.051] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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31
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Yang W, Dong J, Wang J, Xu X. Rh(III)-Catalyzed Diastereoselective Annulation of Amides with Quinone Monoacetals: Access to Bridged Nine-Membered Heterocycles via C–H Activation. Org Lett 2017; 19:616-619. [DOI: 10.1021/acs.orglett.6b03777] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wei Yang
- College
of Chemistry, Chemical Engineering and Materials Science, Key Laboratory
of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, China
- College
of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Jinhuan Dong
- College
of Chemistry, Chemical Engineering and Materials Science, Key Laboratory
of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, China
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jingyi Wang
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xianxiu Xu
- College
of Chemistry, Chemical Engineering and Materials Science, Key Laboratory
of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, China
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32
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Das R, Kapur M. Product Control using Substrate Design: Ruthenium-Catalysed Oxidative C−H Olefinations of Cyclic Weinreb Amides. Chemistry 2016; 22:16986-16990. [DOI: 10.1002/chem.201603126] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Riki Das
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road, Bhauri Bhopal 462066, MP India
| | - Manmohan Kapur
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road, Bhauri Bhopal 462066, MP India
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33
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Jardim GAM, Bower JF, da Silva Júnior EN. Rh-Catalyzed Reactions of 1,4-Benzoquinones with Electrophiles: C-H Iodination, Bromination, and Phenylselenation. Org Lett 2016; 18:4454-7. [PMID: 27599589 DOI: 10.1021/acs.orglett.6b01586] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Under Rh-catalyzed conditions, typically electrophilic 1,4-benzoquinones exhibit nucleophilic reactivity, such that exposure to appropriate electrophiles generates products of C-H iodination, bromination, and phenylselenation. This provides a mild and general method for direct halofunctionalization, and the first method that can achieve direct C-H phenylselenation of this compound class. The scope and limitations of the new protocols are outlined, and representative derivatizations are highlighted.
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Affiliation(s)
- Guilherme A M Jardim
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais , Belo Horizonte, MG 31270-901, Brazil.,School of Chemistry, University of Bristol , Bristol, BS8 1TS, United Kingdom
| | - John F Bower
- School of Chemistry, University of Bristol , Bristol, BS8 1TS, United Kingdom
| | - Eufrânio N da Silva Júnior
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais , Belo Horizonte, MG 31270-901, Brazil
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34
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Xie T, Xiao Y, Zhao S, Hu XQ, Xu PF. Catalyst-Free Chemoselective Synthesis of 3,4-Dihydroquinazoline-2-thiones and 2-Imino[1,3]benzothiazines. J Org Chem 2016; 81:10499-10505. [DOI: 10.1021/acs.joc.6b01232] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Ting Xie
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yu Xiao
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Shuai Zhao
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164, P. R. China
| | - Xiu-Qin Hu
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Peng-Fei Xu
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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35
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Potter TJ, Ellman JA. Rh(III)-Catalyzed C-H Bond Addition/Amine-Mediated Cyclization of Bis-Michael Acceptors. Org Lett 2016; 18:3838-41. [PMID: 27437933 PMCID: PMC4975630 DOI: 10.1021/acs.orglett.6b01846] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A Rh(III)-catalyzed C-H bond addition/primary amine-promoted cyclization of bis-Michael acceptors is reported. The C-H bond addition step occurs with high chemoselectivity, and the subsequent intramolecular Michael addition, mediated by a primary amine catalyst, sets three contiguous stereocenters with high diastereoselectivity. A broad range of directing groups and both aromatic and alkenyl C-H bonds were shown to be effective in this transformation, affording functionalized piperidines, tetrahydropyrans, and cyclohexanes.
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Affiliation(s)
- Tyler J. Potter
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520-8170, United States
| | - Jonathan A. Ellman
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520-8170, United States
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36
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Weinstein AB, Ellman JA. Convergent Synthesis of Diverse Nitrogen Heterocycles via Rh(III)-Catalyzed C-H Conjugate Addition/Cyclization Reactions. Org Lett 2016; 18:3294-7. [PMID: 27337641 PMCID: PMC4973575 DOI: 10.1021/acs.orglett.6b01611] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The development of Rh(III)-catalyzed C-H conjugate addition/cyclization reactions that provide access to synthetically useful fused bi- and tricyclic nitrogen heterocycles is reported. A broad scope of C-H functionalization substrates and electrophilic olefin coupling partners is effective, and depending on the nature of the directing group, cyclic imide, amide, or heteroaromatic products are obtained. An efficient synthesis of a pyrrolophenanthridine alkaloid natural product, oxoassoanine, highlights the utility of this method.
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Affiliation(s)
- Adam B. Weinstein
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520-8107, United States
| | - Jonathan A. Ellman
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520-8107, United States
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37
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Sharma S, Kumar M, Sharma S, Nayal OS, Kumar N, Singh B, Sharma U. Microwave assisted synthesis of phenanthridinones and dihydrophenanthridines by vasicine/KOtBu promoted intramolecular C–H arylation. Org Biomol Chem 2016; 14:8536-44. [DOI: 10.1039/c6ob01362g] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Vasicine and KOtBu promoted intramolecular C–H arylation has been demonstrated for synthesis of phenanthridinones and dihydrophenanthridines with various aryl halides under microwave conditions.
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Affiliation(s)
- Sushila Sharma
- Department of Natural Product Chemistry and Process Development
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur
- India
- Academy of Scientific and Innovative Research
| | - Manoranjan Kumar
- Department of Natural Product Chemistry and Process Development
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur
- India
- Academy of Scientific and Innovative Research
| | - Shruti Sharma
- Department of Natural Product Chemistry and Process Development
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur
- India
| | - Onkar S. Nayal
- Department of Natural Product Chemistry and Process Development
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur
- India
- Academy of Scientific and Innovative Research
| | - Neeraj Kumar
- Department of Natural Product Chemistry and Process Development
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur
- India
- Academy of Scientific and Innovative Research
| | - Bikram Singh
- Department of Natural Product Chemistry and Process Development
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur
- India
- Academy of Scientific and Innovative Research
| | - Upendra Sharma
- Department of Natural Product Chemistry and Process Development
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur
- India
- Academy of Scientific and Innovative Research
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