Studies on the Syntheses of Sydnone Derivatives and Their Properties: XVI. Syntheses of 4‐Sydnonyl Tosylates by Anodic Tosylation

New sydnone derivatives having heterocyclic substituents such as 4-thiazolyl, 3-thienyl, 2H-1,4-benzothiazin-3-yl, 2H-1,4-benzoxazin-3-yl, and 1,2-dihydro-3-quinoxalinyl groups at the 4-positions were prepared from 4-bromoacetyl-3-arylsydnones (1). Sydnone compounds substituted by a 1,2,3-triazol-4-yl group were prepared via new type phosphonium ylids derived from 1. Electroreduction of 1 was also attempted in order to prepare a syndnone derivatives having a furyl group.

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Studies on the Syntheses of Sydnone Derivatives and Their Properties: XVI. Syntheses of 4‐Sydnonyl Tosylates by Anodic Tosylation

Abstract: As the first synthesis of sydnone derivatives having a carbon‐oxygen bond at the 4‐position of sydnone ring, 4‐sydnonyl tosylate were successfully prepared by anodic substitution reaction.

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Chemistry of Sydnone Compounds

Chemistry of Sydnone Compounds

Synthesis of Sydnone Compounds Having Heterocyclic Groups at the 4-Positions from 4-(Bromoacetyl)sydnones

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