TRIS(2-METHYLPHENYL)PHOSPHORANE, A MODIFIED SEYFERTH-WITTIG REAGENT FOR THE STEREOSELECTIVE SYNTHESES OF Z-ALLYLTRIMETHYLSILANES
The Wittig reactions between title β-silylphosphorus ylide and aliphatic aldehydes give selectively Z-allyltrimethylsilanes with minimal formation of vinylation products.