| 摘要 |
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. |
