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1
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Slathia N, Gupta A, Kapoor K. I2/ TBHP Reagent System: A Modern Paradigm for Organic Transformations. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | - Kamal Kapoor
- University of Jammu Department of Chemistry Department of Chemistry 180006 Jammu INDIA
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2
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Zheng Y, Wang ZW, Cheng WS, Xie ZZ, He XC, Chen YS, Chen K, Xiang HY, Chen XQ, Yang H. Phosphine-Mediated Morita-Baylis-Hillman-Type/Wittig Cascade: Access to E-Configured 3-Styryl- and 3-(Benzopyrrole/furan-2-yl) Quinolinones. J Org Chem 2022; 87:974-984. [PMID: 34985275 DOI: 10.1021/acs.joc.1c02149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A phosphine-mediated, well-designed Morita-Baylis-Hillman-type/Wittig cascade for the rapid assembly of a quinolinone framework from benzaldehyde derivatives is developed for the first time. By rationally combining I2/NIS-mediated cyclization, biologically relevant 3-(benzopyrrole/furan-2-yl) quinolinones were facilely synthesized in a one-pot process by starting from 3-styryl-quinolinones bearing an o-hydroxy/amino group, significantly expanding the chemical space of this privileged skeleton. Further utility of this protocol is illustrated by successfully performing this transformation in a catalytic manner through in situ reduction of phosphine oxide by phenylsilane.
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Affiliation(s)
- Yu Zheng
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Zhi-Wei Wang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Wen-Shuo Cheng
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Zhen-Zhen Xie
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Xian-Chen He
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Yan-Shan Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Kai Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, Henan, P. R. China
| | - Xiao-Qing Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
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3
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Yang CY, Hu LP, Zhang DR, Li X, Teng MY, Liu B, Huang GL. p-Toluenesulfonic acid-catalyzed regioselective C4–H iodination of isoquinolin-1(2 H)-ones. NEW J CHEM 2022. [DOI: 10.1039/d2nj00159d] [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
An efficient procedure for p-toluenesulfonic acid-catalyzed iodination of isoquinolin-1(2H)-ones with N-iodosuccinimide under mild reaction conditions is reported. This methodology features scalable synthesis, wide substrate scope, and high functional-group tolerance.
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Affiliation(s)
- Cai-Yun Yang
- School of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, China
| | - Lin-Ping Hu
- School of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, China
| | - De-Run Zhang
- School of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, China
| | - Xia Li
- Department of Library, Yunnan Normal University, Kunming, 650500, China
| | - Ming-Yu Teng
- School of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, China
| | - Bo Liu
- School of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, China
| | - Guo-Li Huang
- School of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, China
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4
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Cai C, Zou D. Recent Progress in Benzylic C(sp 3)—H Functionalization of Toluene and Its Derivatives. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202201027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Tang J, Chen X, Zhao CQ, Li WJ, Li S, Zheng XL, Yuan ML, Fu HY, Li RX, Chen H. Iodination/Amidation of the N-Alkyl (Iso)quinolinium Salts. J Org Chem 2021; 86:716-730. [PMID: 33267579 DOI: 10.1021/acs.joc.0c02321] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The NaIO4-mediated sequential iodination/amidation reaction of N-alkyl quinolinium iodide salts has been first developed. This cascade process provides an efficient way to rapidly synthesize 3-iodo-N-alkyl quinolinones with high regioselectivity and good functional group tolerance. This protocol was also amenable to the isoquinolinium salts, thus providing a complementary method for preparing the 4-iodo-N-alkyl isoquinolinones.
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Affiliation(s)
- Juan Tang
- Key lab of Green Chemistry and Technology, Ministry of Education; College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China
| | - Xue Chen
- Key lab of Green Chemistry and Technology, Ministry of Education; College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China
| | - Chao-Qun Zhao
- Key lab of Green Chemistry and Technology, Ministry of Education; College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China
| | - Wen-Jing Li
- Key lab of Green Chemistry and Technology, Ministry of Education; College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China
| | - Shun Li
- Key lab of Green Chemistry and Technology, Ministry of Education; College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China
| | - Xue-Li Zheng
- Key lab of Green Chemistry and Technology, Ministry of Education; College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China
| | - Mao-Lin Yuan
- Key lab of Green Chemistry and Technology, Ministry of Education; College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China
| | - Hai-Yan Fu
- Key lab of Green Chemistry and Technology, Ministry of Education; College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China
| | - Rui-Xiang Li
- Key lab of Green Chemistry and Technology, Ministry of Education; College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China
| | - Hua Chen
- Key lab of Green Chemistry and Technology, Ministry of Education; College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China
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