Convenient general preparation of oxygenated monofluoro- and gem-difluoro-5a-androstanes using diethylaminosulphur trifluoride
作者:T. Geoffrey C. Bird、Peter M. Fredericks、Ewart R. H. Jones、G. Denis Meakins
DOI:10.1039/c39790000065
日期:——
Hydroxy-ketones in the 5α-androstane series are converted into fluoro-ketones by diethylaminosulphurtrifluoride under mild conditions; acetoxy-ketones give acetoxydifluorides under more vigorous conditions.
Heard; McKay, Journal of Biological Chemistry, 1946, vol. 165, p. 677,683
作者:Heard、McKay
DOI:——
日期:——
Cambie, Richard C.; Craw, Peter A.; Hughes, Ronald J., Australian Journal of Chemistry, 1982, vol. 35, # 10, p. 2111 - 2130
作者:Cambie, Richard C.、Craw, Peter A.、Hughes, Ronald J.、Rutledge, Peter S.、Woodgate, Paul D.
DOI:——
日期:——
The action of lithium-aluminium hydride on a dienol in steroid serie
作者:M. Fetizon、Hoa Tran Huy、P. Mourgues
DOI:10.1016/s0040-4020(01)93606-3
日期:1978.1
treatment with LAH in boiling THF, androstane-4,6-diene, 3β-ol 2 is slowly reduced to a mixture of androstenols 3a and 4. The reduction mechanism, as shown by deuteriation, involves an intramolecular hydride transfer, leading to an “allyl-lithium” intermediate.