Preparation of phosphonium salt from (S)
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Toshio Kubota; Masahiro Yamamoto
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Article
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1992
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Elsevier Science
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French
⚖ 251 KB
Trifluoropropene oxide ~89 reacted with triphenylphosphine in the presence of trifiuoruu~tic acid to afford the amcsp~ding &hydroxyakyl phosphonium salt. Wittig type reac&m of aldehydes with the salt under bit amditim readily occur& to form optiadly active a-biflucmmethylated allylic alcohols. The t