The Iminophosphorane‐Phosphane Ph2PC6H4OC6H4PPh2=NP(O)(OPh)2: Synthesis, Reactivity, and Catalytic Activity in Suzuki Cross‐Coupling and the Homogeneous Hydrogenation of Olefins
作者： Ramalingam Venkateswaran , Maravanji S. Balakrishna , Shaikh M. Mobin
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摘要: The iminophosphorane-phosphane ligand Ph 2 PC 6 H 4 OC -PPh =NP(O)(OPh) (1) has been synthesized by partial imination of bis[2-(diphenylphosphanyl)phenyl] ether (DPEphos) with phosphoryl azide (PhD) P(O)N 3 . A similar reaction in a 1:2 stoichiometry affords the bis(iminophosphorane) O-{C PPh =NP (O )(OPh)2)2 (2). chalcogen derivatives O{C P(E)Ph } [E = S (3) and Se (4)] P(E)-C )(OPh)2 (5) (6)] are also treating DPEphos 1 elemental sulfur selenium, respectively. mononuclear complexes trans - [MCl {κ -P-Ph ΟC =NP(Ο)(OPh ) ] [M Pt (7) Pd (8)] -[Rh(CO)Cl(κ -P -Ph -H (OPh (12) prepared [Pt(COD)Cl ], [Pd(COD)Cl [{Rh(CO) -Cl} Treatment [Pd (dba )] dibenzylideneacetone) complex 0 -P,O )(OPh) (9) which coordinates through its P O centers κ P,O chelating fashion. monocoordinated Au I [AuCl{κ (O)(OPh }] (10) [AuCl(SMe structure confirmed X-ray crystallography. [{Rh(COD)Cl} presence AgOTf cationic Rh cis-[Rh(COD)(κ -P,O-Ph (O) (OPh) [OTf] (11). catalytic activity Pd° 9 investigated Suzuki cross-coupling reactions. Homogeneous hydrogenation olefins studied using 11.
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