Ylide-Stabilized Phosphenium Cations: Impact of the Substitution Pattern on the Coordination Chemistry
Although N-heterocyclic phosphenium (NHP) cations have received considerable research interest due to their application in organocatalysis, including asymmetric synthesis, phosphenium cations with other substitution patterns have hardly been explored. Her
Stalder, Tobias,Krischer, Felix,Steinert, Henning,Neigenfind, Philipp,Gessner, Viktoria H.
(2022/01/11)
Synthesis and reactions of [1-(trialkylsilyl)alkylidene]triphenylphosphoranes
Alkylidenetriphenylphosphoranes 1 react with trialkyl halosilanes 2 to afford silylated alkylidenephosphoranes 5, which can be converted to acylated alkylidenephosphoranes 8 and 10 by trimethylsilyl carboxylates 6 or carboxylic anhydrides 10. Bis(acylalkylidenephosphoranes) 13-15 are available from 5 and bis(trimethylsilyl) dicarboxylates 12 or cyclic or polymeric anhydrides 16, 17.
Bestmann,Bomhard,Dostalek,Pichl,Riemer,Zimmermann
p. 787 - 792
(2007/10/02)
Spontaneous dissociation of phosphoniumylidyl-chlorophosphines to ionic phosphenium chlorides
The products from the replacement of two chlorofunctions of PCl3 by a pair of phosphoniumylidyl substituents or by both a phosphoniumylidyl and an amino substituent are ionic phosphenium chlorides and not covalent chlorophosphines.
Schmidpeter, Alfred,Jochem, Georg
p. 471 - 474
(2007/10/02)
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