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Dialkylboron-substituted phosphonium ylides have been prepared by reaction of dialkylchloroboranes with alkylidenephosphoranes (equation 50). The reaction of phosphonium ylides with alkyldichloro-boranes leads to the formation of boron-bridged 1,3-bisylides (equation 51). ... [Pg.181]

See other pages where Phosphonium 1,3-bisylides is mentioned: [Pg.27] [Pg.192] [Pg.27] [Pg.99] [Pg.192]