| Autor: |
Turuta, A., Dzhlantiashvili, N., Voishvillo, N. |
| Zdroj: |
Russian Chemical Bulletin; 1993, Vol. 42 Issue 5, p946-949, 4p |
| Abstrakt: |
The approaches to the synthesis of various 16α,17α-disubstituted pregna-4,9-dien-3,20-diones from the corresponding 9α-derivatives with labile epoxide, dioxolane, and oxathiolane rings D′ have been studied. The transformation has been found to proceed efficiently when the 9α-sulfinic esters are used at the intermediate stage and then elimination of sulfinic acid by TsOH/SiO is carried out. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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