期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 362, 期 14, 页码 2953-2960出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.202000493
关键词
Rhodium; C-H activation; Cascade reaction; [4+2] annulation; Lactonization
资金
- National Natural Science Foundation of China [21602022]
- 1000 Talents Program of Sichuan Province, Chengdu Talents Program, Chenghua District Talents Program
- Science and Technology Program of Sichuan Province [2018JY0345]
- Chengdu University New Faculty Start-up Funding [2081915037]
- Jinhua Branch of Sichuan Industrial Institute of Antibiotics [1003]
Herein, an efficient and regioselective Rh(III)-catalyzed [4+2] annulation/lactonization cascade of indoles with 4-hydroxy-2-alkynoates at room temperature to access the furo[3 ',4 ':4,5]pyrimido[1,6-a]indole-1,5(3H,4H)-diones is described. This method features mild reaction conditions, operational simplicity, excellent regioselectivity, broad substrate scope with good functional group tolerance, and good to excellent yields.
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