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An Efficient Rapid Synthesis of Benzoxazoles and Benzothiazoles Using PMA.SiO2 at Room Temperature under Heterogeneous Conditions

[ Vol. 18 , Issue. 8 ]

Author(s):

Chithaluri Sudhakar*, Vanam Shekhar, Manchi Shyamsunder, Adurthi Suryakumari and Vala Manojkumar   Pages 583 - 587 ( 5 )

Abstract:


Treatment of 2-aminophenol (or 2-aminothiophenol) with aromatic aldehydes in the presence of phosphomolybdic acid on silica at room temperature affords the corresponding benzoxazoles (or benzothiazoles) in excellent yields (88-96%) under heterogeneous conditions. Benzoxazoles and benzothiazoles are formed in less than 10 min.

Keywords:

Aldehydes, 2-Aminophenol, 2-Aminothiophenol, PMA SiO2, Benzoxazoles, Benzothiazoles.

Affiliation:

Department of Chemistry, School of Science, GITAM Deemed to be University, Telangana-502 102, Department of Chemistry, KRR Govt Degree College, Kodad-508206, Department of Chemistry, School of Science, GITAM Deemed to be University, Telangana-502 102, Department of Chemistry, School of Science, GITAM Deemed to be University, Telangana-502 102, Department of Chemistry, School of Science, GITAM Deemed to be University, Telangana-502 102

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