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 |
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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 |
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