Process for the o-substitution of phenols

Details Process for the o-substitution of phenols Process for the o-substitution of phenols

1981-03-30

1982-11-16

Lone, Werren B.

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

Organic compounds

Oxygen containing

568781, 568786, 568789, 568790, 568791, C07C 3711

Patent

active

043595910

ABSTRACT:
This invention relates to a process for reacting phenol, mono- and di-alkyl phenols having at least one free o-position with methanol and/or dimethyl ether in the gas phase to form o-substituted phenols in the presence of a catalyst of oxides of iron, chromium, silicon and at least one oxide of an alkaline-earth metal, lanthanum and manganese or in the presence of a catalyst of oxides of iron, chromium, a metal from the group comprising germanium, titanium, zirconium, tin, lead, and at least one oxide of an alkali metal, alkaline-earth metal, lanthanum and manganese.

REFERENCES:
patent: 2448942 (1948-09-01), Winkler et al.
patent: 3953529 (1976-04-01), Yonemitsu et al.
patent: 4208537 (1980-06-01), Kawamats et al.
patent: 4227024 (1980-10-01), Leach

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