作者:R. Heckendorn、Ch. Tamm
DOI:10.1002/hlca.19670500730
日期:1967.10.31
AbstractTreatment of A‐nor‐Δ3(5)‐cholestene‐2‐one (1) with alkaline hydrogen peroxide gave 3β,5‐epoxy‐A‐nor‐cholestane‐2‐one (2) and the epoxylactone 3 (BAEYER‐VILLIGER reaction). LiAlH4‐reduction of 2 yielded A‐nor‐5β‐cholestane‐2β,5‐diol(4) (main product) and A‐nor‐5β‐cholestane‐2α,5‐diol (5). LiAlH4‐reduction of 1 led mainly to A‐nor‐Δ3(5)‐cholestene‐2α‐ol (8). Catalytic hydrogenation of 8 gave the known A‐nor‐5α‐cholestane‐2α‐01 (10), A‐nor‐5β‐cholestane‐2α‐01 (11) (main product), A‐nor‐5β‐cholestane (9) and A‐nor‐5β‐cholestane‐2‐one (12). By LiAlH4‐reduction of the ketones 12 and 13 the two additional alcohols 14 and 15 were obtained.