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.
具有NaBH 4,L-Selectride或Superhydride的具有α-二苯并膦基5氧化物基团的酮的还原得到了Thrner Horner-Wittig中间体,因此得到了E-烯烃,而NaBH 4 / CeCl 3给出了赤型中间体,因此得到了Z-烯烃。