Selective monomethylation of phenolic compounds

Details Selective monomethylation of phenolic compounds Selective monomethylation of phenolic compounds

1991-05-09

1992-01-21

Gray, Bruce

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

Organic compounds

Oxygen containing

568636, 568638, 568643, 568648, 568649, 568650, 568651, 568652, C07C 4100

Patent

active

050829785

ABSTRACT:
Mono-, di- and triphenols are selectively monomethylated by reaction with para-dimethoxybenzene in the presence of a catalytically effective amount of an acid catalyst.

REFERENCES:
patent: 2697732 (1954-12-01), Mavity
patent: 2909568 (1959-10-01), Gleim
patent: 3895076 (1975-07-01), Bauer et al.
patent: 4307253 (1981-12-01), Neumann et al.
patent: 4487975 (1984-12-01), Ratton
patent: 4654446 (1987-03-01), Brunelli et al.
Chemical Abstracts, vol. 106, No. 19, 11 Mai 1987, p. 617, Resume No. 155658b, Columbus, Ohio, U.S.; P. Beltrame et al.: "Methyl Transfer from Anisole to Phenol on HY Zeolite", Gazz. Chem. Ital. 1986 116(8), 473-4.

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