Horner-Wittig reactions using dibenzophosphole oxides: Stereochemically controlled reduction of ketones
作者:Jason Elliott、Stuart Warren
DOI:10.1016/s0040-4039(00)84063-0
日期:1986.1
Reduction of ketones having an α-dibenzophosphoie-5-oxide group witin NaBH4, L-Selectride, or Superhydride gives threo Horner-Wittig intermediates and hence E-alkenes, while NaBH4/CeCl3 gives erythro intermediates and hence Z-alkenes.
Trans alkenes by stereoselective reduction of α-Ph2PO ketones: -isosaffrole, -anethole, and peniculin
作者:Antony D. Buss、Ralph Mason、Stuart Warren
DOI:10.1016/s0040-4039(00)88420-8
日期:1983.1
Reversed stereochemical control in the regioselective reduction of hindered diphenylphosphinoyl (Ph2PO-) ketones and enones
作者:Jason Elliott、David Hall、Stuart Warren
DOI:10.1016/s0040-4039(00)95266-3
日期:1989.1
Reduction of α′-diphenylphosphinoyl enones (6) and crowded α-diphenylphosphinoyl ketones (4) with sodium borohydride in the presence of cerium chloride gives the otherwise difficult to obtain -alcohols (5) and (7).