Tetrahedron Letters p. 3405 - 3408 (1997)
Update date:2022-08-03
Topics:
Uziel, Jacques
Riegel, Nadege
Aka, Benoit
Figuiere, Pierre
Juge, Sylvain
Phosphine borane complexes are transformed under mild conditions, in presence of an olefin, into quaternary phosphonium salts by reaction with an alkyl (or aryl) halide. In the case of the reaction of (R)-PAMP.BH3 1e with benzyl bromide, the enantiomerically pure phosphonium salt 3h is obtained.
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