期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 352, 期 16, 页码 2773-2777出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.201000510
关键词
Bronsted acids; 4,7-dihydroindoles; enantioselectivity; Friedel-Crafts reaction; trifluoromethyl-substituted compounds
资金
- National Natural Science Foundation of China [20772091, 20902067]
In the presence of chiral phosphoric acid, an enantioselective Friedel-Crafts reaction of 4,7-dihydroindoles with aromatic trifluoromethyl ketones and ethyl 4,4,4-trifluoroacetoacetate has been realized. A series of 2-substituted 4,7-dihydroindoles with a trifluoromethylated tertiary alcohol moiety were obtained in 45-95% yields with 60-93% ee. Furthermore, 2-functionalized indole derivatives could be produced through a one-pot process.
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