期刊
TETRAHEDRON
卷 70, 期 11, 页码 2020-2026出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2014.01.067
关键词
1,4-Benzoquinones; Oxindoles; Enantioselective catalysis; Tandem reaction; Organocatalyst
资金
- National Sciences Foundation of China [21172217]
- National Basic Research Program of China (973 Program) [2010CB833300]
By employing a chiral bifunctional thiourea-tertiary amine as catalyst, enantioselective tandem Michael addition-oxidation of 3-monosubstituted oxindoles with 1,4-benzoquinones were realized. The reactions afforded a wide range of 3,3-disubstituted oxindoles with moderate to good yields (up to 87%) in moderate to good enantioselectivities (up to 96%). (C) 2014 Elsevier Ltd. All rights reserved.
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