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Phosphonium bromide, triphenylvinyl

VINYL TRIPHENYLPHOSPHONIUM BROMIDE (Phosphonium bromide, triphenylvinyl-)... [Pg.152]

Additions to Vinylphosphonium Salts.— The addition of triphenylvinyl-phosphonium bromide to a number of active methylene compounds has been studied. A correlation was observed between the acidity of the active methylene species and the ease of formation of 2 1 adducts. [Pg.21]

Other electrophiles, such as derivative 31 (Scheme 53), triphenylvinyl-phosphonium bromide 32 (Scheme 54), A(-halosuccinimides (Scheme 55) and tosyl cyanide (Scheme 56), have been also evaluated in this tandem ECA-enolate trapping methodology [88]. Lower regio- and enantioselectivities are obtained in these cases than when the trapping is carried out with alkyl, propargyl, aUyl or benzyl halides. [Pg.78]

See other pages where Phosphonium bromide, triphenylvinyl is mentioned: [Pg.429]   
See also in sourсe #XX -- [ Pg.48 , Pg.129 ]

See also in sourсe #XX -- [ Pg.48 , Pg.129 ]

See also in sourсe #XX -- [ Pg.48 ]



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Phosphonium bromide

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