Process for the o-substitution of phenols

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

1981-05-14

1983-08-23

Lone, Werren B.

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

Organic compounds

Oxygen containing

568794, C07C 3716

Patent

active

044005571

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, vanadium, at least one oxide of boron, aluminum, titanium, zirconium, silicon, germanium, tin and 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: 3855318 (1974-12-01), Nakajima et al.
patent: 4329517 (1982-05-01), Taniguchi et al.

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