Phosphides reactions with

Reaction with Phosphorus Nucleophiles. The ethyleneknine ring can be opened using phosphines (91) or alkaU metal phosphides (92) ... 

Phosphoms shows a range of oxidation states from —3 to +5 by virtue of its electronic configuration. Elemental P is oxidized easily by nonmetals such as oxygen, sulfur, and halides to form compounds such as 2 5 2 5 reduced upon reaction with metals to generate phosphides. The... 

The alkah metal phosphides of formula M P and the alkaline-earth phosphides of formula M2P2 contain the P anion. Calcium diphosphide [81103-86-8] CaP2, contains P reaction with water Hberates diphosphine and maintains the P—P linkage. 

Few industrial uses have so far been found for phosphides. Ferrophosphorus is produced on a large scale as a byproduct of P4 manufacture, and its uses have been noted (p. 480). Phosphorus is also much used as an alloying element in iron and steel, and for improving the workability of Cu. Group 3 monophosphides are valuable semiconductors (p. 255) and Ca3P2 is an important ingredient in some navy sea-flares since its reaction with water releases spontaneously flammable... 

Heterometallic alkali metal phosphide complexes with transition metals have also been reported. The complex [(Cy2P)3Hf(ju.-PCy2)2Li (DME)] results from the reaction of LiPCy2 with HfCl4(THF) (98). This complex persists in solution. Jones et al. have reported the synthesis and reactivity toward a range of electrophiles of a series of lithium di-t-butylphosphido(alkyl)cuprates [RCu(PBu2)Li] (R = Me,... 

The reaction of 23 with LiCMe3 in pentane in a 1 4 molar ratio produces a phosphide, which, besides compound 27, still contains some 26. The latter can be further metallated by repeated reactions with LiBu so that an enriched end product is obtained whose content of compound 27 is about 80% (36). 

It is known from the preceding research that phosphorus-rich silylphosphanes or their related lithium phosphides undergo, with LiBu in ether, reactions in which a structural transformation occurs, as shown in Scheme 16 20). The reactions of the partially silylated tri- and cyclotetraphosphanes were explored in order to come closer to understanding the above reactions. It can be taken for granted that the P—C bond is not affected in such reactions. 

These compounds could not be isolated in pure form. They appear during the final work-up of the reaction solution as viscous liquids which are colorless to light yellow and which mix well under all relative concentrations with the usual solvents and show no tendency whatsoever to crystallize. From the integration of the P( H -NMR spectra of these mixtures, a ratio of 10 3 was established for the isomeric compounds 108 and 109. This agrees with the ratio in the phosphides initially present (44). Although all the n-tetraphosphides so far described can be transformed into the corresponding silyl derivatives by reaction with MejSiCl, in the silylation of the phosphide 104 the following peculiarity is encountered. 

Reaction with copper sulfate solution forms a mixture of metallic copper and copper(I) phosphide. The two reactions may he written separately as follows ... 

Reactions with alkah metals occur under warm conditions producing the corresponding metal phosphides ... 

Reactions with phosphorus, arsenic and antimony form phosphide, arsenide, and antimonide of potassium, respectively ... 

Dibromoethylene, irradiation of, 5 156 Dibromomethylarsonic acids, 44 221 Dibromomethylsulfonium salts, 35 262 Di-(-butyldichlorosiIane, reactions, with lithium phosphides, 31 181-186 Dibutyl phosphonic acid, in liquid-liquid extraction, 9 34-35, 36-37... 

Phosphide-bridged complexes, osmium, 37 311 Phosphinates and phosphinites, reaction with hexafluoroacetone, 30 235 Phosphines, 44 318... 

Silylated aminoiminophosphane, reaction with hexafluoroacetone, 30 238 Silylated cyclotetraphosphanes, 31 198 reactions with lithium alkyls and lithium phosphides, 31 204-212 Silylated tri- and tetraphosphanes reactions with lithium alkyls and lithium phosphides, 31 199-212 synthesis via lithiated diphosphanes, 31 194-198... 

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