The addition of alcohols, thiols, water and amines to the σ-coordinated CN group of cis-[Pd(o-CH2C6H4CN)L2]2(BF4)2(L2 = 2PPh3, 1,2-bis(diphenylphosphino)ethene or -ethane) yields stable N-bonded iminoether, iminothioether, amide and amidine complexes,respectively. Thiophenols, ArSH (Ar = p-C6H4CH3, p-C6H4Br) break the σ-Pd-C bond, forming o-cyano toluene and complexes of the type [Pd(SAr)L2]2(BF4)2. The azido complex PdN3(o-CH2C6H4CN)(Ph2PCH2CH2PPh2) is stable in the solid state but in solution it undergoes an intramolecular 1,3-cycloaddition yielding the corresponding tetrazolate complex.
Cationic cyanobenzylpalladium(II) complexes. Synthesis and reactivity of the CN group towards nucleophiles
ROS, RENZO;MICHELIN, RINO;
1979
Abstract
The addition of alcohols, thiols, water and amines to the σ-coordinated CN group of cis-[Pd(o-CH2C6H4CN)L2]2(BF4)2(L2 = 2PPh3, 1,2-bis(diphenylphosphino)ethene or -ethane) yields stable N-bonded iminoether, iminothioether, amide and amidine complexes,respectively. Thiophenols, ArSH (Ar = p-C6H4CH3, p-C6H4Br) break the σ-Pd-C bond, forming o-cyano toluene and complexes of the type [Pd(SAr)L2]2(BF4)2. The azido complex PdN3(o-CH2C6H4CN)(Ph2PCH2CH2PPh2) is stable in the solid state but in solution it undergoes an intramolecular 1,3-cycloaddition yielding the corresponding tetrazolate complex.File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
