Mechanistic investigation on the hydrogenation of imines by[p-(Me2CH)C6H4Me]RuH(NH2CHPhCHPhNSO2C6H4-p-CH3). Experimental support for an ionic pathway.
The need for acidic activation in the stoichiometric hydrogenation of benzyl-[1-phenyl-ethylidene]-amine (6a) or [1-(4-methoxy-phenyl)-ethylidene]-methyl-amine (6b) by Noyori's catalyst [p-Me2CH)C6H4Me]RuH(NH2CHPhCHPhNSO2C6H4-p-CH3) (2) is inconsistent with the proposed concerted mechanism and supports an ionic mechanism.
Aberg
Jenny B
JB
Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden. jeb@organ.su.se
Samec
Joseph S M
JS
Bäckvall
Jan E
JE
D000143:Acids / Q000737:chemistry; D002384:Catalysis; D006865:Hydrogenation; D007097:Imines / Q000737:chemistry; D007477:Ions / Q000737:chemistry*; D007659:Ketones / Q000737:chemistry; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry*
D000143:Acids; D007097:Imines; D007477:Ions; D007659:Ketones; D009942:Organometallic Compounds; D012428:Ruthenium