Synthesis of heterocycles. Part II. New routes to acetylthiadiazolines and alkylazothiazoles
作者： NF Eweiss , A Osman , None
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摘要: … disappeared upon addition of deuterium oxide and a new singlet appeared at 6 4.55 ppm. The … direct attack by the amino (route 1) or the imino nitrogen atom (route 2) on the carbonyl …
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