Process for the catalytic hydrogenolysis of p-substituted benzal

Details Process for the catalytic hydrogenolysis of p-substituted benzal Process for the catalytic hydrogenolysis of p-substituted benzal

1981-12-21

1983-11-01

Helfin, Bernard

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568644, 568648, 568592, 502161, C07C 43205, C07C 4128

Patent

active

044131496

ABSTRACT:
Disclosed is a process for catalytic hydrogenolysis of p-substituted benzaldehyde-dialkyl-acetals of the general formula ##STR1## in which R is an alkyl group, an unsubstituted or substituted aryl group or an unsubstituted or substituted aralkyl group, by means of a catalyst system composed of cobalt carbonyl and at least one nitrogen-containing heterocyclic compound, such as pyridine, pyrrole, pyrrolidone or piperidine and a hydrogen/carbon monoxide mixture to give the corresponding p-substituted benzyl alkyl ether derivatives.

REFERENCES:
patent: 4201868 (1980-05-01), Slinkard
Fleming et al., Canadian Jour. of Chem., vol. 54 (1976), 685-694.
Rylander, Paul N., "Catalytic Hydrogenation Over Platinum Metals" 1967, pp. 449-454.
Fleming, Bruce and Bolker, Henry, "The Reduction of Acetals with Cobalt Carbonyl Catalysts", Aug. 1975, pp. 685-693.
Wender, Irving and Pino, Piero, "Organic Synthesis via Metal Carbonyls", 1968, pp. 84-86.
Slaugh, Lynn H. and Mullineaux, Richard D, "Novel Hydroformylation* Catalysts", Feb. 1968, pp. 469-477.
Forester, Denis and Roth, James F., "Homogeneous Catalysts-II" Aug. 1973, pp. 27-31.

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