Synthesis of Ethyl 8‐Aryl‐8‐hydroxy‐3‐oxo‐8H[1,2,4]oxadiazolo‐[3,4‐c][1,4]thiazine‐5‐carboxylates by Ring‐Expansion Rearrangement

Autor: Imtiyaz Ahmed Khazi, R. S. Koti, V. S. Hegde, Gundurao Kolavi
Rok vydání: 2007
Předmět:
Zdroj: Synthetic Communications. 37:1715-1722
ISSN: 1532-2432
0039-7911
DOI: 10.1080/00397910701265945
Popis: The title compounds were prepared by the ring–ring interconversion of ethyl 5‐nitroso‐6‐arylimidazo[2,1‐b]thiazole‐3‐carboxylates with hydrochloric acid. The effect of electron‐withdrawing substituent in the thiazole ring on the general applicability of the ring–ring interconversion has been also evaluated.
Databáze: OpenAIRE
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