Process for the preparation of o-phthalaldehydes

Details Process for the preparation of o-phthalaldehydes Process for the preparation of o-phthalaldehydes

1990-11-20

1992-04-21

Lone, Werren B.

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

Organic compounds

Oxygen containing

568426, 568437, C07C 4500

Patent

active

051070324

ABSTRACT:
A process for the preparation of o-phthalaldehydes is disclosed comprising the steps of (1) halogenating an o-xylene and (2) hydrolysis of the resulting tetrahalogeno-o-xylene.

REFERENCES:
patent: 2948756 (1960-08-01), Bengelsdorf
patent: 3089908 (1963-05-01), Schult et al.
patent: 4125561 (1978-11-01), Redecker et al.
patent: 4206152 (1980-06-01), Gosteli

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