TY - JOUR
T1 - Transfer hydrogenylysis of trichloromethyl compounds by alcohols and polystyrene-anchored Rh, Ru and Ir complexes
AU - Migron, Yoelit
AU - Blum, Jochanan
AU - Sasson, Yoel
PY - 1983/12
Y1 - 1983/12
N2 - Polystyrene-anchored RhCl[P(C6H5)3]3, RuCl2[P(C6H5)3]3 and IrCl-(CO)[P(C6H5)3]2 were shown to catalyze selective transfer hydrogenolysis of various trichloromethyl compounds between 140 and 160 °C in the presence of 2-propanol. 2,2,2-Trichloro-1-phenylethanol, 2,2,2-trichloro-acetophenone and 2-propyl trichloroacetate were converted into 2,2-dichloro-1-phenylethanol, 2,2-dichloroacetophenone and 2-propyl dichloro-acetate, respectively. 1,3,3,3-Tetrachloropropylbenzene gave a 1:1 mixture of 1,3,3- and 3,3,3-trichloropropylbenzene. Under the reaction conditions the catalysts proved to be resistant to leaching. Owing to saturation of the active sites with HCl, the catalytic power dropped after several runs, but it could be restored by extrusion of part of the metal-coordinated chlorine with the aid of air or oxygen.
AB - Polystyrene-anchored RhCl[P(C6H5)3]3, RuCl2[P(C6H5)3]3 and IrCl-(CO)[P(C6H5)3]2 were shown to catalyze selective transfer hydrogenolysis of various trichloromethyl compounds between 140 and 160 °C in the presence of 2-propanol. 2,2,2-Trichloro-1-phenylethanol, 2,2,2-trichloro-acetophenone and 2-propyl trichloroacetate were converted into 2,2-dichloro-1-phenylethanol, 2,2-dichloroacetophenone and 2-propyl dichloro-acetate, respectively. 1,3,3,3-Tetrachloropropylbenzene gave a 1:1 mixture of 1,3,3- and 3,3,3-trichloropropylbenzene. Under the reaction conditions the catalysts proved to be resistant to leaching. Owing to saturation of the active sites with HCl, the catalytic power dropped after several runs, but it could be restored by extrusion of part of the metal-coordinated chlorine with the aid of air or oxygen.
UR - http://www.scopus.com/inward/record.url?scp=0020883396&partnerID=8YFLogxK
U2 - 10.1016/0304-5102(83)83025-9
DO - 10.1016/0304-5102(83)83025-9
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AN - SCOPUS:0020883396
SN - 0304-5102
VL - 22
SP - 187
EP - 194
JO - Journal of Molecular Catalysis
JF - Journal of Molecular Catalysis
IS - 2
ER -