4, 4-Dimethyl-A-homoandrostane epoxides

H Velgová

Index: Velgova Collection of Czechoslovak Chemical Communications, 1983 , vol. 48, # 9 p. 2536 - 2548

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Abstract

Abstract The configuration of the oxygen-containing substituent in the position 3 of some 4, 4- dimethyl-A-homo-4a-androstene derivatives was determined and their epimeric 4a, 5- epoxides were prepared. The acid catalysed opening of the 4a, 5-epoxide ring in epoxides XV and XXIX with the trans-orientation of the substituent in the position 3 and the epoxide ring afforded the products of 5 (0) n participation of the 3-substituent, ie 3, 5-transannular ...