Phosphine dihalides

Wiley, G.A., Rein, B.M., and Hershkowitz, R.L., Studies in organophosphorus chemistry. II. Mechanism of the reaction of tertiary phosphine dihalides with alcohols, Tetrahedron Lett., 2509, 1964. [Pg.141]

The reaction of halogenotriphenylphosphonium halides (triphenyl-phosphine dihalides) with alcohols is a useful method for the synthesis of alkyl halides (see Section II,2b p. 239). It has been found88 that (alkoxymethylene)dimethyliminium halides are formed in the reactions of these reagents with alcohols in N,N-dimethylformamide a possible mechanism is shown. Hydrolysis of the (alkoxymethylene)-dimethyliminium halide intermediate affords a formic ester, whereas... [Pg.254]

Fluoride derivatives of palladium(II) and platinum(II), all of which are phosphine derivatives, can be most simply grouped into one of two subsections, namely neutral or cationic species. The neutral species are all of the form [MXF(PPh3)2] (M = Pd, Pt) where X can be Cl, Br, I, H, methyl, phenyl and C6F5. The synthetic route into these compunds involves either addition of HF to a metal phosphine dihalide or... [Pg.69]

Phosphine dihalides s. Tri-phenylphosphine difluoride Phospine imines (s. a. Phosphine aminoimines)... [Pg.245]

Without additional reagents Phosphine dihalides from phosphines... [Pg.136]

Phosphazo compounds s. Phosphine imines Phosphine dihalides... [Pg.238]

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