Asymmetric epoxidation of some arylalkenyl sulfones using a modified Juliá–Colonna procedure
作者:Jose-Maria Lopez-Pedrosa、Michael R. Pitts、Stanley M. Roberts、Shanthini Saminathan、John Whittall
DOI:10.1016/j.tetlet.2004.04.190
日期:2004.6
A modified procedure for performing the Juliá–Colonnaepoxidationreaction effects the oxidation of some vinyl sulfones to generate the corresponding epoxides 5–8 in good to excellent optical purity.
Sanchez, M. Elena Lasterra; Roberts, Stanley M., Journal of the Chemical Society. Perkin transactions I, 1995, # 12, p. 1467 - 1468
作者:Sanchez, M. Elena Lasterra、Roberts, Stanley M.
DOI:——
日期:——
Stereocontrolled ring-opening of some enantiomerically enriched epoxy ketones and epoxy alcohols using trimethylaluminium: synthesis of (S )-2-arylpropanoic acids
作者:Lydia Carde、D. Huw Davies、Stanley M. Roberts
DOI:10.1039/b000996m
日期:——
cleavage furnished (S)-2-phenylpropanoic acid 11. In a complementary sequence epoxy ketones (−)-6 and 25 were converted into (S)-2-phenylpropanoic acid and (S)-fenoprofen 5 respectively by reduction with zinc borohydride, reaction with trimethylaluminium and oxidative cleavage. Similarly epoxy ketones (−)-6, 21 and 28 were treated with methylmagnesiumiodide, trimethylaluminium and the resultant alcohols subjected