Method for the preparation of phenolic acetates and paraformalde

Details Method for the preparation of phenolic acetates and paraformalde Method for the preparation of phenolic acetates and paraformalde

1978-11-03

1980-12-02

Myers, Jane S.

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

Organic compounds

Carboxylic acid esters

260604R, C07C 6739, C07C 69157

Patent

active

042373093

ABSTRACT:
The oxidation of methyl benzenes with air or oxygen in the presence of acetic anhydride, benzaldehyde and an acid catalyst under mild reaction conditions yields a phenolic acetate and formaldehyde or paraformaldehyde when the ratio of acetic anhydride to methyl benzene is adjusted to provide the selective formation of the phenolic acetate and formaldehyde or paraformaldehyde. In this process, it is essential that the flow of air or oxygen through the reaction medium be maintained at a sufficient rate to provide for the continuous removal of formaldehyde as it is formed. The formaldehyde may then be recovered in the form of paraformaldehyde.

REFERENCES:
patent: 3772383 (1973-11-01), Kominami et al.
patent: 4056572 (1977-11-01), Bashkirov et al.
Grozhan et al., Doklady Akad. Nauk. SSSR, 204, (4), pp. 872-873, (1972).

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