Phosphorane, dichloromethylene

Phosphorane (dichloromethylene) TRIPHENYL 1, 46, 33 Phosphorous triamide, hexamethyl, 46, 42... [Pg.136]

Phosphorane, (dichloromethylene) TRIPHENYL-1, 46, 33 Phosphorus pentachloride, for conversion of D,L-10-camphorsulfonic acid to acid chloride, 46,14 reaction with styrene, 46, 99 Photolysis of substituted stilbenes to phenanthrenes, 46, 91... [Pg.59]

It should be added that dichloromethylene(triphenyl)phosphorane reacts with hexachlorophenol , giving presumably pentachlorophenoxy(tri-phenylmethyOphosphonium trichloromethide, which hydrolyses to the 1 1 pentachlorophenol-triphenyl-phosphine adduct and chloroform (Espinosa, 1972). [Pg.335]

Triphenyl(trichloromethyl)phosphonium chloride and (dichloromethylene)tri-phenylphosphorane are important intermediates in the reaction system triphenyl-phosphine/carbon tetrachloride. Solutions of (dichloromethylene)triphenyl-phosphorane, which is a convenient Wittig reagent, were first prepared by the addition of dichlorocarbene to triphenylphosphine in chloroform. However, the ylide could not be separated without degradation caused by the reaction medium. [Pg.107]

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