| abstract |
The invention provides a method which is based on activation of salicylate intramolecular hydrogen bonds to prepare carboxylic ester through nucleophilic substitution reaction between salicylate used as an alkylating reagent and carboxylic acid anions. The method has the characteristics that the reagent is available at low cost and the salicylic acid is recyclable, the carboxylic ester is generated selectively by using carboxylic acid containing hydroxyl or amino groups, the reagent is small in toxicity, and less environmental pollution is caused. |