Abstract
Rapid and efficient condensation reactions of 2‐aminothiophenol and 2‐aminophenol with various aldehydes were carried out using I2 in solvent‐free conditions with or without microwave irradiation to afford the corresponding 2‐substituted benzothiazole and benzoxazole derivatives in good to excellent yields.
Acknowledgment
We acknowledge the Islamic Development Bank (IDB) for granting the loan in 1993 for purchasing a 500‐MHz Bruker NMR spectrometer.