Iodine‐Mediated Synthesis of 2‐Arylbenzoxazoles, 2‐Arylbenzimidazoles, and 1,3,5‐Trisubstituted Pyrazoles

Abstract

Abstract 2‐Arylbenzoxazoles and 2‐arylbenzimidazoles were synthesized by the reaction of aldehydes with 2‐aminophenol and O‐phenylenediamines in the presence of iodine. 1,3,5‐Trisubstituted pyrazoles were synthesized from chalcones and hydrazines in the presence of iodine. CDRI Communication No. 6509. Keywords: Benzimidazolesbenzoxazolesiodineoxidative aromatizationsingle pot1,3,5‐trisubstituted pyrazoles Acknowledgment We are thankful to Sophisticated Instrumentation Analytical Facility, Central Drug Research Institute (SAIF, CDRI) Lucknow, for providing spectroscopic data. Notes CDRI Communication No. 6509.