Preparation of 2-methyl-2-alkenals

Details Preparation of 2-methyl-2-alkenals Preparation of 2-methyl-2-alkenals

1986-06-11

1987-06-30

Lone, Werren B.

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

Organic compounds

Oxygen containing

568458, 568462, C07C 4567, C07C 4561

Patent

active

046772308

ABSTRACT:
2-Methyl-2-alkenals of the formula ##STR1## where R.sup.1 and R.sup.2 are each hydrogen, alkyl which may additionally carry aromatic radicals, or an aromatic radical, are prepared by isomerizing a 2-alkylacrolein of the formula ##STR2## in the presence of hydrogen and of a catalyst which contains palladium and an oxide or salt of a rare earth metal as active components, at from 20.degree. to 120.degree. C. and under from 1 to 100 bar.

REFERENCES:
patent: 4124619 (1978-11-01), Fitton et al.
patent: 4288643 (1981-09-01), Weber et al.
patent: 4317945 (1982-03-01), Bernhagen et al.
patent: 4599458 (1986-07-01), Fischer et al.
patent: 4605779 (1986-08-01), Matsuda et al.

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