O6; A simple and efficient procedure for the synthesis of substituted benzothiazoles through condensation of 2-aminothiophenol with aromatic aldehydes in the presence of H_2O_2/HCl system in ethanol at room temperature is described. The target compoundshave been characterized by ~1H NMR, ~(13)C NMR IR and MS. Short reaction time, easy and quick isolation of the products, and excellent yields are the main advantages of this procedure.

Chinese chemical letters

Heterocyclic compounds; 2-Substituted benzothiazoles; H_2O_2/HCl