Etude de la regiochimie et de lastereochimie de l'addition conjuguee de sulfoxydes et d'oxydes de phosphine d'alcene-2yles, de phosphonates et de sulfoxydes d'allyles et de dimethyl-3,3 allyles, lithiees a des enones cycliques
Regioselective Reaction of Allylic Carbanion Derived from 1-Phenylthio-2-octene with Conjugated Cyclopentenone Derivative and Synthesis of Prostaglandin E<sub>1</sub>
The reaction of the allylic carbanion derived from 1-phenylthio-2-octene with conjugated cyclopentenone derivatives in the presence of hexamethylphosphoric triamide (HMPA) regioselectively gave the 1,4 adduct at the α carbon of the allylic sulfide. The reaction was employed for the synthesis of prostaglandin E1.
The diastereospecific aprotic conjugate addition reactions of carbanions derived from allylic sulfoxides and allylic phosphine oxides.
作者:Malcolm R. Binns、Richard K. Haynes、Andrew A. Katsifis、Paul A. Schober、Simone C. Vonwiller
DOI:10.1016/s0040-4039(00)98553-8
日期:——
The title carbanions undergo conjugate addition to cyclic enones in THF to deliver vinylic sulfoxides and vinylic phosphineoxides as single diastereomers.