128894-22-4Relevant articles and documents
Terminal phosphanido rhodium complexes mediating catalytic P-P and P-C bond formation
Geer, Ana M.,Serrano, ngel L.,De Bruin, Bas,Ciriano, Miguel A.,Tejel, Cristina
, p. 472 - 475 (2015)
Complexes with terminal phosphanido (M-PR2) functionalities are believed to be crucial intermediates in new catalytic processes involving the formation of P-P and P-C bonds. We showcase here the isolation and characterization of mononuclear phosphanide rhodium complexes ([RhTp(H)-(PR2)L]) that result from the oxidative addition of secondary phosphanes, a reaction that was also explored computationally. These compounds are active catalysts for the dehydrocoupling of PHPh2 to Ph 2P-PPh2. The hydrophosphination of dimethyl maleate and the unactivated olefin ethylene is also reported. Reliable evidence for the prominent role of mononuclear phosphanido rhodium species in these reactions is also provided.
Conjugate phosphination of cyclic and acyclic acceptors using Rh(I)-phosphine or Rh(I)-carbene complexes. Probing the mechanism with chirality at the silicon atom or the phosphorus atom of the Si-P reagent
Trepohl, Verena T.,Fr?hlich, Roland,Oestreich, Martin
experimental part, p. 6510 - 6518 (2011/02/26)
The Rh(I)-catalyzed conjugate phosphinyl transfer from an Si-P reagent to an electron-deficient acceptor requires individual protocols for cyclic and acyclic α,β-unsaturated carbonyls and carboxyls. While 1,4-addition to cyclic acceptors is catalyzed by a
ADDITION OF DIPHENYLPHOSPHINE TO MALEIC ANHYDRIDE AND RELATED COMPOUNDS
Doorn, J. A. van,Wife, R. L.
, p. 253 - 260 (2007/10/02)
A Michael addition of secondary phosphines to activated olefins containing the ethenedione moiety such as maleic anhydride, maleic ester and dibenzoylethene leads to functionalised tertiary phosphines.Reactions of activated olefins which contain a carboxylic group do not lead to the expected products; instead, phosphonium salts are formed by a sequence of reactions.A hydrogen shift plays a crucial role both in the reaction that leads to the adduct and in the reaction that leads to the phosphonium salt.Phosphinosuccinic anhydrides and phosphinosuccinic esters can betransformed into the corresponding succinic acids.Decarboxylation of phosphinosuccinic acids leads to phosphinopropionic acids.
