Thiazolotetrazole-azidothiazole

Arylsulfonylbenzimidoyl chlorides, with aminothiazoles, 50 Arylsulfonyl halides, 98, 115 Azide, with azothiazoles, 111 to carbamate, 16 Curtius rearrangement of, 15, 16 See also Sodium azide Azido thiazoles, 113 azidothiazole-thiazolotetrazole, 113 reactions of, 113... 

An interesting ring-chain tautomerism between 2-azidothiazole (328) and thiazolotetrazole (328a) has been reported (597, 618, 619), the 328 structure predominating (Scheme 190). The solvent polarity and basicity influences this equilibrium constant significantly (1592). 

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See also in sourсe #XX -- [ ]

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