Preparation of phenylacetaldehydes

Details Preparation of phenylacetaldehydes Preparation of phenylacetaldehydes

1989-07-12

1991-02-05

Lone, Werren B.

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

Organic compounds

Oxygen containing

568426, C07C 4541, C07C 4551

Patent

active

049906844

ABSTRACT:
Phenylacetaldehydes of the general formula I ##STR1## where each of R.sup.1 to R.sup.5 is independently of the others hydrogen, halogen, unsubstituted or halogen-substituted alkyl, alkenyl, alkoxyl, alkylthio or cycloalkyl, are prepared by converting glycidic esters of the general formula II ##STR2## where each of R.sup.1 to R.sup.5 is as defined above and R.sup.6 is tertbutyl or i-propyl, in the presence of zeolites and/or phosphates and/or phosphoric or boric acid on a carrier material and/or acidic metal oxides as catalysts.

REFERENCES:
patent: 3925458 (1975-12-01), Kogure et al.
patent: 4585900 (1986-04-01), Holy et al.

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