|
1
|
Ye ZP, Yang JS, Yang SJ, Guo M, Yuan CP, Ye YQ, Chen HB, Xiang HY, Chen K, Yang H. Visible-Light-Induced, Catalyst-Free Monofluoromethyl Sulfonylation of Alkenes with Iodine(III) Reagent and DABSO. Org Lett 2023; 25:7062-7066. [PMID: 37726866 DOI: 10.1021/acs.orglett.3c02766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
A visible-light-induced radical relay strategy to access heterocycles bearing a monofluoromethylsufonyl moiety is reported, with PhI(OCOCH2F)2 as the CH2F radical precursor and DABSO as the SO2 source. A range of oxindoles, containing a CH2FSO2CH2- group at the C3 position, were synthesized from N-arylacrylamides in up to 97% yields. The protocol features catalyst-free photochemical tandem, mild reaction conditions, broad functional group compatibility, and good to excellent yields.
Collapse
Affiliation(s)
- Zhi-Peng Ye
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Jing-Song Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Si-Jia Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Meng Guo
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Chu-Ping Yuan
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Yong-Qing Ye
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Hong-Bin Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
- Jiangxi Time Chemical Company, Ltd., Fuzhou 344800, P. R. China
| | - Hao-Yue Xiang
- 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
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| |
Collapse
|
|
2
|
Lin L, Wang P, Dong T, Tsui GC, Liao S. Radical Fluorosulfonyl Heteroarylation of Unactivated Alkenes with Quinoxalin-2(1 H)-ones and Related N-Heterocycles. Org Lett 2023; 25:1088-1093. [PMID: 36775923 DOI: 10.1021/acs.orglett.2c04315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
The incorporation of sulfonyl fluoride groups into molecules has been proved effective to enhance their biological activities or introduce new functions. Herein, we report a transition-metal-free and visible-light-mediated radical 1-fluorosulfonyl-2-heteroarylation of alkenes, which could allow access to a series of SO2F-containing quinoxalin-2(1H)-ones, which are a critical structural motif widely present in a number of biologically active molecules. Further application of the method to the modification of other heterocycles and drug molecules as well as ligation chemistry via SuFEx click reactions is also demonstrated.
Collapse
Affiliation(s)
- Lu Lin
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Peng Wang
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Tao Dong
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR 12333, China
| | - Gavin Chit Tsui
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR 12333, China
| | - Saihu Liao
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China.,State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, China
| |
Collapse
|
|
3
|
Shen L, Yuan JW, Zhang B, Song SY, Yang LR, Xiao YM, Zhang SR, Qu LB. Photoredox-catalyzed three-component difluorobenzylation of quinoxalin-2(1 H)-ones with unactivated vinylarenes and BrCF 2CO 2Et/HCF 2CO 2H. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2023. [DOI: 10.1515/znb-2022-0126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Abstract
An environmentally friendly strategy for the photo-catalyzed three-component reaction between quinoxalin-2(1H)-ones, vinylarenes, with inexpensive and easily accessible ethyl bromodifluoroacetate/sodium difluoromethanesulfinate is described. This protocol exhibits mild conditions, high efficiency, and excellent functional group tolerance, providing a highly efficient approach for the synthesis of difluorobenzylated quinoxalin-2(1H)-ones by the formation of two carbon-carbon bonds. A radical mechanism is responsible for this three-component transformation.
Collapse
Affiliation(s)
- Lu Shen
- School of Chemistry and Chemical Engineering , Henan University of Technology , Zhengzhou 450001 , P. R. China
| | - Jin-Wei Yuan
- School of Chemistry and Chemical Engineering , Henan University of Technology , Zhengzhou 450001 , P. R. China
| | - Bing Zhang
- School of Chemistry and Chemical Engineering , Henan University of Technology , Zhengzhou 450001 , P. R. China
| | - Sai-Yi Song
- School of Chemistry and Chemical Engineering , Henan University of Technology , Zhengzhou 450001 , P. R. China
| | - Liang-Ru Yang
- School of Chemistry and Chemical Engineering , Henan University of Technology , Zhengzhou 450001 , P. R. China
| | - Yong-Mei Xiao
- School of Chemistry and Chemical Engineering , Henan University of Technology , Zhengzhou 450001 , P. R. China
| | - Shou-Ren Zhang
- Henan Key Laboratory of Nanocomposites and Applications , Institute of Nanostructured Functional Materials, Huanghe Science and Technology College , Zhengzhou 450006 , P. R. China
| | - Ling-Bo Qu
- College of Chemistry , Zhengzhou University , Zhengzhou 450001 , P. R. China
| |
Collapse
|
|
4
|
Gao R, Wang F, Geng X, Li CY, Wang L. Visible-Light-Initiated Difunctionalization of Quinoxalin-2(1 H)-ones with Acyloxy Nitroso Compounds. Org Lett 2022; 24:7118-7122. [DOI: 10.1021/acs.orglett.2c02703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Runye Gao
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Fang Wang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China
| | - Xiao Geng
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China
| | - Chuan-Ying Li
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Lei Wang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
| |
Collapse
|