Process for converting anisoles to ortho-methylated phenolic pro

Details Process for converting anisoles to ortho-methylated phenolic pro Process for converting anisoles to ortho-methylated phenolic pro

1981-07-24

1983-04-26

Lone, Werren B.

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

Organic compounds

Oxygen containing

568806, C07C 3904

Patent

active

043814131

ABSTRACT:
A process for converting anisoles to ortho-methylated phenolic products in high selectivity is disclosed. The process comprises passing methoxybenzene, o-methylmethoxybenzene, 2,6-dimethylmethoxybenzene, or mixtures thereof, over gamma-alumina in the presence of an effective amount of water at a temperature in the range of about 225.degree. to about 295.degree. C.

REFERENCES:
patent: 2289886 (1942-07-01), Schmerling
patent: 2697732 (1954-12-01), Mavity
patent: 3247263 (1966-04-01), Weiderhammer
patent: 4278816 (1981-07-01), Shim
patent: 4283572 (1981-08-01), Klicker
Kolka et al., "J. Organic Chem.", vol. 22, (1957), pp. 642-646.
Bowman et al., "J. Amer. Chem. Soc.", vol. 79, (1957), pp. 87-92.
Wagner et al., "Synthetic Organic Chem.", (1953), pp. 171-172, pub. John Wiley & Son, New York.
Obolentsey, "Chem. Abstract", vol. 41, (1947), pp. 5477-5478.

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