A practical and cost-effective synthetic method of P-chiral diarylalkyl, aryldialkyl, and triaryl phosphineoxides by using readily available chiral diphenyl-2-pyrrolidinemethanol as the auxiliary is developed. The long-standing racemization issue during solvolysis has been addressed and well controlled by employing a suitable solvent, a low reaction temperature, and an appropriate reaction time.
Carey, Joseph V.; Barker Michael D.; Brown, John M., Journal of the Chemical Society. Perkin transactions I, 1993, # 7, p. 831 - 840
作者:Carey, Joseph V.、Barker Michael D.、Brown, John M.、Russell, Michael J. H.
DOI:——
日期:——
The nucleophilic displacement route to homochiral arylphosphine oxides
作者:John M. Brown、Joseph V. Carey、Michael J.H. Russell
DOI:10.1016/s0040-4020(01)85600-3
日期:1990.1
the methoxyphosphinate was readily displaced by aliphatic or aromatic Grignard reagents giving the corresponding phosphine oxides with inversion of configuration. This procedure constitutes a simple route to di- and triarylphosphine oxides in ca. 95% e.e.; optical purities were estimated by NMR methods.