期刊
ORGANIC LETTERS
卷 21, 期 22, 页码 9212-9216出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.9b03578
关键词
-
资金
- Research Grants Council of the Hong Kong S. A. R., P.R. China [GRF 17307518]
The use of a halogen bond donor to catalyze Friedel-Crafts reactions of indoles with a range of aldehydes and ketones to directly produce bis(indolyl)methanes, including the natural products arsindoline A, arundine, trisindoline, and vibrindole A, is reported. The bidentate catalyst used in these reactions proved to be more effective than a monondentate analogue, a thiourea commonly used as an organocatalyst, and even a trityl cation that has been used previously in the synthesis of bis(indolyl)methanes.
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