The wittig reaction of non-stabilized phosphorus ylides and aromatic aldehydes. Studies on erythro and threo β-hydroxyphosphonium salts and the promotion of stereochemical drift by synergism between diastereomers
作者:Bruce E. Maryanoff、Allen B. Reitz
DOI:10.1016/s0040-4039(00)98758-6
日期:1985.1
In deprotonation studies with isomerically pure -3 and -3, “retro-Wittig” reaction was only detected for -3. Mixtures of -3 and -3, under lithium salt-free conditions, undergo stereochemical drift because of synergism between diastereomeric oxaphosphetanes -2 and -2 during their decomposition to alkenes.