Continuous and selective catalytic conversion of cyanohydrins to

Details Continuous and selective catalytic conversion of cyanohydrins to Continuous and selective catalytic conversion of cyanohydrins to

1989-02-01

1990-07-03

Lone, Werren B.

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

Organic compounds

Oxygen containing

568455, 568485, C07C 4544

Patent

active

049393049

ABSTRACT:
There is described a method of selectively and continuously converting a cyanohydrin to its corresponding aldehyde using as a catalyst zerovalent palladium dispersed on an organic polymeric resin with a surface area above 30 m.sup.2 /g. The aqueous cyanohydrin feedstock contains from about 0.5 to about 1.1 equivalents of an acid over and above that necessary to provide a pH of 2. Selective conversions may be obtained using hydrogen pressures up to about 450 pounds per square inch.

REFERENCES:
patent: 4127594 (1978-11-01), Anderson et al.
patent: 4347387 (1982-08-01), Akutogawa et al.
patent: 4581447 (1986-04-01), Arena
Opitz et al., "Chemical Abstracts", vol. 54(16), 1959, pp. 16377-16378.
Inui et al., J. Mol. Catal., 22(1), 93 (1983).
Lisichkin et al., Chem. Abst., 83(7), 57986q.
N. L. Holy, J. Chem. Soc., Chem. Commun., 23, 1074 (1978).

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