93176-82-0Relevant articles and documents
Peracid Oxidation of Some 5α-Substituted 6-Ketosteroids
Ahmad, M. S.,Moinuddin, G.,Ansari, Imtiaz A.,Ansari, Shamim A.
, p. 220 - 222 (2007/10/02)
The oxidation of 3β-acetoxy-5α-hydrocholestan-6-one (I), its 3β-chloro (II) analogue and 3β-acetoxy-5α-bromostigmastan-6-one (III) with perbenzoic acid, in the presence of p-toluenesulphonic acid as a catalyst gives 3β-acetoxy-5α-hydroxy-7-oxa-B-homochoelstan-6-one (IV), 5-oxo-5,6-secocholest-3-en-6-oic acid (V), 3β-chloro-7-oxa-B-homocholest-4-en-6-one (VI), 3β-hydroxy-5α-bromostigmastan-6-One (VII) and 5α-bromo-6-oxa-B-homostigmastane-3,7-dione (VIII), respectively.The structures of the products have been established by their spectral data, chemical transformations and by comparison with authentic samples.