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1,3-Dipolar cycloaddition to sydnones : reaction revisited-role of HBr in the transformation of 3-arylsydnones into 3-aryl-5-methyl-2-oxo-∆4- 1,3,4-oxadiazolines
2002
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Post-Graduate Department of Chemistry, Karnatak University, Dharwad-580 003, India E-mail : bvbadami@yahoo.co.uk Manuscript received 16 April 2001. revised 22 November 2001, accepted 27 February 2002 Conversion of 3-arylsydnones into 3-aryl-5-methyl-2-oxo-∆4-1,3,4-oxadiazolines was carried out at different reaction conditions using bromine and acetic anhydride to find an unambiguous evidence for the 1,3-dipolar cyeloaddition mechanism and to detect the role of HBr.
doi:10.5281/zenodo.5847902
fatcat:cj34dwkbobfmtbef6skueayyyq