Imidazolyl-PTA Derivatives as Water-Soluble (P,N) Ligands for Ruthenium-Catalyzed Hydrogenations
作者:Donald A. Krogstad、Antonella Guerriero、Andrea Ienco、Gabriele Manca、Maurizio Peruzzini、Gianna Reginato、Luca Gonsalvi
DOI:10.1021/om200896g
日期:2011.11.28
exhibit higher watersolubility than most upper-rim derivatives of PTA. The two ligands reacted cleanly with [Ru(η6-p-cymene)Cl2]2 in refluxing CHCl3 to form κ2-P,N-[(η6-p-cymene)RuPTA-CH(1-MeIm)OH}Cl]Cl (8) and κ2-P,N-[(η6-p-cymene)RuPTA-C(1-MeIm)2OH}Cl]Cl (9). Ligands phenyl(1,3,5-triaza-7-phosphatricyclo[3.3.1.13,7]dec-6-yl)methanol (PZA) and 4′-dimethylaminophenyl(1,3,5-triaza-7-phosphatricyclo[3