Abstract
Phenylthiolation of some carboxylic acids catalyzed by AlCl3 in the presence of excess dehydrating agent (ZnCl2) has been achieved. Moreover, regiospecificity was tested of some dioic acids and found to be specific at the aliphatic part of carboxylic functionality.
ACKNOWLEDGMENT
The authors gratefully acknowledge Mr. M. Shahidul Islam, an instrument engineer at BCSIR Dhaka, Bangladesh, for the necessary 1H NMR and IR spectra.
Notes
Note. Mp/bp were compared with the literature values and the Aldrich chemical catalog.