期刊
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
卷 2018, 期 30, 页码 4081-4088出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201800454
关键词
Methyleneindolinones; -Keto acids; Decarboxylation; Organocatalyst; Enantioselective
资金
- Council of Scientific and Industrial Research (CSIR) India [02(0239)/15/EMR-II]
- University Grants Commission (UGC) India
- Department of Science and Technology (DST), India under FIST programme
- UGC, India, under CAS-II
- UGC, India, under UPE programme
The quinine squaramide-catalyzed enantioselective decarboxylative addition reaction of various -keto acids with methyleneindolinones has been developed. Through this methodology, various oxindole derivatives were synthesized in good yields (up to 93%) and excellent enantiomeric excess (up to 99% ee) and moderate diastereoselectivity (up to 66:34).
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