Triphenylphosphine reactions

Cobalt, cyclopentadienyl(ij -tolane)-(triphenylphosphine)-reaction with phenyl isocyanide, 1, 666 Cobaltacycles selenophenes from, 4, 968 Cobaltacyclopentadienes reactions, I, 671 Cobester... 

Triphenylphosphine. reaction with alkyl halides, 721 Triple bond, electronic structure... 

Platinum, ethylenebis(triphenylphosphine)-reactions with 5,6-dimethyl-2,l,3-benzothiadiazole, 2. 

Pinacolone, o-(diphenylphosphino)benzoyl-coordination chemistry, 401 Piperidine, IV-hydroxy-metal complexes, 797 pA a values azole ligands, 77 Plant roots amino acids, 962 carboxylic acids, 962 Plastocyanin copper binding site, 557 copper(II) complexes, 772 copper(II) site in, 770 Platinum, dichlorobis(benzonitrile)-IR spectrum, 264 Platinum, cis-dichlorodianunine-antitumor activity, 34, 979 Platinum, ethylenebis(triphenylphosphine)-reactions with 5,6-dimethyl-2,l,3-benzothiadiazole, 194 Platinum blue formation, 265 Platinum complexes acetylacetone reactions, 380 amides, 491 amidines... 

A rather unusual ylide, 85, can be readily generated by the interaction of carbon tetrabromide with triphenylphosphine. Reaction of 85 with aldehydes furnishes 1,1-dibromoalkenes 86a. The latter compounds, under the action of BuLi, are transformed into lithium acetylides 86b and ultimately into substituted acetylenes 86c. This sequence is widely used as a reliable method for the preparation of various acetylenes from readily available aldehydes. 

In an earlier kinetic study of the oxaziridine-triphenylphosphine reaction, it was concluded that direct attack on oxygen by triphenylphosphino occurred because the transition state did not appear to involve much charge separation. However, the transition state for attack at nitrogen, as pictured in Ref. 95, does not involve much charge separation either. 

The acylphosphinimine(B) isolated from the triphenylphosphine reaction exhibited a carbonyl band at 1575 cm." while the amidophos-phonium salt(A) derived from it did not (Reaction 24). 

Triphenylphosphine, reaction with N,N-dimethylamino-benzaldehyde to yield /3,/3-dichloro- >-dimethylam-inostyrene, 46,33... 

MA copolymerization, 371 polyester reactive diluent, 485, 503 Chlorosuccinic acid, 53, 56 Chlorosuccinic anhydride, triphenylphosphine reaction, 230 A-Chlorosuccinimide, 43... 

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