科研之友
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摘要
Reaction of 1-substituted 3-alkenyl-1H-indoles with an equimolar amount of trifluoroacetic acid in dichloromethane gave cyclic dimers, 1,3-trans-N,N'-disubstituted cyclopent[b]indoles, in 53-84% yields as sole products through an acid-mediated stereoselective cyclo-dimerization process. The structure of the cyclic dirtier derived from 3-cyclopentylidenemethyl-1-methyl-1H-indole was elucidated by X-ray crystallographic analysis.
- 出版日期2005-9-19
