UNEXPECTED DESULFONATION OF α-PHENYLSULFONYL ENAMINOACRYLATES DURING THEIR CYCLISATION TO NEW N-ARYL 4H-1,4-BENZOTHIAZINE-l,l-DIOXIDES

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dc.contributor.authorSimón E. López
dc.contributor.authorJaime Charris
dc.contributor.authorNeudo Urdaneta
dc.contributor.authorCarlos Canelón
dc.contributor.authorJosé Salazar
dc.contributor.authorJulio Herrera
dc.contributor.authorJorge Ángel
dc.coverage.spatialBolivia
dc.date.accessioned2026-03-22T15:49:26Z
dc.date.available2026-03-22T15:49:26Z
dc.date.issued2001
dc.descriptionCitaciones: 3
dc.description.abstractAbstract An unexpected desulfonation of α-phenylsulfonyl-enaminoacrylates occurred during their cyclisation to novel 6,7-dichloro-N-aryl-4H-1,4-benzothiazine-1,1-dioxides using potassium carbonate and silver nitrate in DMF. This last cyclisation step was not completed in five hours of reaction but, instead of higher yields of the desired cyclic 4H-benzothiazines, a mixture of the above mentioned target compounds and desulfonated N-formyl-2-aryl-enanii-noacrylates were obtained.
dc.identifier.doi10.1080/10426500108040258
dc.identifier.urihttps://doi.org/10.1080/10426500108040258
dc.identifier.urihttps://andeanlibrary.org/handle/123456789/54621
dc.language.isoen
dc.publisherTaylor & Francis
dc.relation.ispartofPhosphorus, sulfur, and silicon and the related elements
dc.sourceUniversidad Central
dc.subjectBenzothiazine
dc.subjectAryl
dc.subjectChemistry
dc.subjectPotassium carbonate
dc.subjectMedicinal chemistry
dc.subjectSulfone
dc.subjectOrganic chemistry
dc.titleUNEXPECTED DESULFONATION OF α-PHENYLSULFONYL ENAMINOACRYLATES DURING THEIR CYCLISATION TO NEW N-ARYL 4H-1,4-BENZOTHIAZINE-l,l-DIOXIDES
dc.typearticle

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