The study of Lewis acid effect on asymmetric Diels-Alder reactions of new 2-sulfinylbutadienes derived from (1R, 2S, 3R)-3-mercaptocamphan-2-ol

Autor: Teng-Kuei Yang, Han-Yang Chu, Dong-Sheng Lee, Yao-Zhong Jiang, Ta-Shue Chou
Rok vydání: 1996
Předmět:
Zdroj: Tetrahedron Letters. 37:4537-4540
ISSN: 0040-4039
DOI: 10.1016/0040-4039(96)00897-0
Popis: The Diels-Alder reactions of N-phenylmaleimide and new chiral 2-sulfinylbutadienes, which were prepared from MerCO[(1R, 2S, 3R)-3-mercaptocamphan-2-ol], produced cycloadducts up to 99% d.e. in the presence of LiClO4 at ambient temperature. On the other hand, we found the facial selectivity of the cycloaddtion changed greatly among various Lewis acids.
Databáze: OpenAIRE