The anionotropic rearrangement of a steroidal ethynyl-ethylenic alcohol

Autor: F. Sondheimer, A.D. Cross, J.C. Orr, M.L. Franco
Rok vydání: 1964
Předmět:
Zdroj: Steroids. 3:1-12
ISSN: 0039-128X
DOI: 10.1016/0039-128x(64)90047-9
Popis: Reaction of 2-formyl-5α-androst-2-en-17β-ol (III) with ethynylmagnesium bromide yielded the ethynyl-ethylenic diol (IV). This diol was rearranged by means of sulfuric acid to the conjugated ethynyl-ethylenic diol (VIa), containing the 3-hydroxyl group in the α-configuration as evidenced by nuclear magnetic resonance spectroscopy. Other products obtained from (IV) by treatment with acid are the saturated hydroxydione (V), the methylfuran (VII) and the conjugated hydroxy-dienone (VIII). Some oxidation experiments carried out with the unconjugated diol (IV) and the conjugated diol (VIa) are described.
Databáze: OpenAIRE