期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 82, 期 7, 页码 3895-3900出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.6b03056
关键词
-
资金
- National Natural Science Foundation of China [21576296, 21676302]
- Central South University
Reductive dimerization of isatin and its derivatives can be regarded as a step-economical pathway to construct 3,3'-disubstituted bisoxindoles, which was unfortunately accompanied by severe direct reduction as well as low efficiency. A visible-light driven, photoredox-catalytic protocol was developed to readily furnish 3,3'-dihydroxy- (dl-, > 20:1 dr) and 3,3'-diamino-bisoxindoles (mesa-, 3.5:1 to 5:1 dr) in moderate to good yields, successfully circumventing the common problem. Two vicinal quaternary carbon centers were effectively assembled under the irradiation of visible light.
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