Water Soluble Cationic Phosphine Ligands Containing <i>m</i>-Guanidinium Phenyl Moieties. Syntheses and Applications in Aqueous Heck Type Reactions
作者:Antonella Hessler、Othmar Stelzer、Harald Dibowski、Karin Worm、Franz P. Schmidtchen
DOI:10.1021/jo961140n
日期:1997.4.1
Cationicphosphineligandscontaining m-guanidinium phenyl substituents Ph(3-n)P[C(6)H(4)-m-NHC(NH(2))(NMe(2))](n)}(n+) nCl(-) (n = 1-3) (17a-c) have been obtained by addition of dimethylcyanamide to the amino groups of tertiary (m-aminophenyl)phosphines in acidic medium. The tertiary (m-aminophenyl)phosphines Ph(3-n)P(C(6)H(4)-m-NH(2))(n) (4a-c) were prepared by reaction of (3-[N,N-bis(trimethyl