Bhagat, S. B.; Sutar, Y. B.; Manohar, Y.; Telvekar, V. N. Diphosphorus Tetraiodide (P2I4): An Efficient Catalyst for Synthesis of 2-Aryl-1,3-Benzazoles via Cyclocondensation of O-Amino Mercaptan Hydroxy Anilines With Aryl Acids. ajc 2017, 30, 376-380.