Steroids—CXX synthesis of halogenated steroid hormones
作者:A. Bowers、L. Cuéllar Ibáñez、H.J. Ringold
DOI:10.1016/0040-4020(59)80061-2
日期:1959.1
The conformational and electronic factors involved in the fission of steroid 5α,6α-epoxides with boron trifluoride-etherate are discussed with particular reference to C-3-keto-5α,6α-epoxides and their cycloethylene-dioxy derivatives.
Hogg et al., Chemistry and industry, 1958, p. 1002
作者:Hogg et al.
DOI:——
日期:——
Synthesis of halogenated steroid hormones—II
作者:A. Bowers、H.J. Ringold
DOI:10.1016/s0040-4020(01)82606-5
日期:1958.1
Fission of 3β-acetoxy-5α-,6α-epoxides in the cholestane, androstane and pregnane series with boron trifluoride etherate afforded the corresponding 3β-acetoxy-5α-hydroxy-6β-fluoro compounds. By appropriate manipulation of these fluorohydrins 6α-fluorocholestenone and the biologically interesting 6α- and 6β-fluorotestosterone and 6α- 6β-fluoroprogesterone were prepared.