104. Aminosteroids. Part II. Preparation of 3 : 7-diketocholestene
作者:Jean Barnett、Brenda E. Ryman、F. Smith
DOI:10.1039/jr9460000526
日期:——
Greenhalgh et al., Journal of the Chemical Society, 1952, p. 2380,2382
作者:Greenhalgh et al.
DOI:——
日期:——
Bromination and sulfenylation of polyenone hydrazones
作者:Albert Feuerer、Theodor Severin
DOI:10.1016/s0040-4039(00)60356-8
日期:1993.3
Ethoxycarbonylhydrazones of dienones are brominated and sulfenylated at the δ-position. Reduction with borohydride and subsequent hydrolysis lead to a 1,5-transposition of the carbonyl group.