1
|
Gong X, Yu N, Gu L, Li Z, Ma W, Zhao F. Redox-neutral rhodium(III)-catalyzed divergent synthesis of tetrasubstituted 1,3-enynes and alkynylated benzofurans. Org Biomol Chem 2022; 21:147-152. [PMID: 36465010 DOI: 10.1039/d2ob01800d] [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
With the assistance of the acetamido directing group (DG), a rhodium-catalyzed C-H alkenylation/DG migration cascade for the synthesis of tetrasubstituted 1,3-enynes from N-phenoxyacetamides and 1,3-diynes has been achieved in this work. Alternatively, a rhodium-catalyzed [3 + 2] annulation for the synthesis of alkynylated benzofurans from the same set of substrates has also been achieved by simply changing the reaction conditions. This work highlights the tunable divergent synthesis of valuable compounds triggered by C-H activation.
Collapse
Affiliation(s)
- Xin Gong
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China.
| | - Na Yu
- Department of Preparation Center, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - Linghui Gu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China.
| | - Zheyu Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China.
| | - Wenbo Ma
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China.
| | - Fei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China. .,State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| |
Collapse
|
2
|
Mao H, Chen J, Zhang X, Yu N, Lu Y, Zhao F. Regio‐ and Stereoselective Synthesis of Tetrasubstituted Alkenes via Ruthenium(II)‐Catalyzed C–H Alkenylation/Directing Group Migration. ChemistrySelect 2022. [DOI: 10.1002/slct.202200292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hui Mao
- College of Pharmacy Jinhua Polytechnic 888 West Hai Tang Road Jinhua 321007 P. R. China
| | - Jing Chen
- Department of Preparation Center General Hospital of Ningxia Medical University Yinchuan 750004 P. R. China
| | - Xiaoning Zhang
- Jinhua Branch Sichuan Industrial Institute of Antibiotics School of Pharmacy Chengdu University 888 West Hai Tang Road Jinhua 321007 P. R. China
| | - Na Yu
- Department of Preparation Center General Hospital of Ningxia Medical University Yinchuan 750004 P. R. China
| | - Yangbin Lu
- Jinhua Branch Sichuan Industrial Institute of Antibiotics School of Pharmacy Chengdu University 888 West Hai Tang Road Jinhua 321007 P. R. China
| | - Fei Zhao
- Jinhua Branch Sichuan Industrial Institute of Antibiotics School of Pharmacy Chengdu University 888 West Hai Tang Road Jinhua 321007 P. R. China
- State Key Laboratory of Drug Research Shanghai Institute of Materia Medica Chinese Academy of Sciences 555 Zu Chong Zhi Road Shanghai 201203 P. R. China
| |
Collapse
|