Process for producing mono-substituted alkylresorcinol isomers

Details Process for producing mono-substituted alkylresorcinol isomers Process for producing mono-substituted alkylresorcinol isomers

1976-10-14

1978-04-25

Thomas, Jr., James O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260625, C07C 3908

Patent

active

040862810

ABSTRACT:
Mono-substituted alkylresorcinol isomers, predominantly the 5-alkylresorcinol isomer, are produced by reacting resorcinol and an aliphatic alcohol having 1-3 carbon atoms in the vapor phase in the presence of an acidic catalyst and by separating the resulting mono-substituted alkylresorcinol isomers from other alkylated hydroxyaromatic compounds and unreacted resorcinol. The molar ratio of alcohol to resorcinol is in the range of greater than 1:1 to 3:1. The reaction time in a batch operation and the liquid hourly space velocity in a continuous operation are controlled so not to allow the mono-substituted alkylresorcinol to undergo further alkylation.

REFERENCES:
patent: 3426358 (1969-02-01), Schlitching et al.
patent: 3642912 (1972-02-01), Sharp
patent: 3992455 (1976-11-01), Leston

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