Synthesis of 4-Arylidene-2-Phenyloxazol-5-Ones Using 1:1 Mixture of Al₂O₃ -H₃BO₃

Jyotimoni Kashyap Department of Chemistry, Gauhati University, Guwahati, 781 014, India

A. B. Chetry Department of Chemistry, Gauhati University, Guwahati, 781 014, India

Pranab J. Das Department of Chemistry, Gauhati University, Guwahati, 781 014, India

Abstract

Cyclodehydration-condensation of hippuric acid and arylaldehydes have been carried out using a 1:1 mixture of Al₂O₃-H₃BO₃ in the presence of stoichiometric quantity of acetic anhydride to give the target compound in good yield. This procedure can be used to synthesize the 4-alkylidene analogs also.

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Synthesis of 4-Arylidene-2-Phenyloxazol-5-Ones Using 1:1 Mixture of Al₂O₃ -H₃BO₃

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Synthesis of 4-Arylidene-2-Phenyloxazol-5-Ones Using 1:1 Mixture of Al2O3 -H3BO3

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Synthesis of 4-Arylidene-2-Phenyloxazol-5-Ones Using 1:1 Mixture of Al₂O₃ -H₃BO₃