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Highly regioselective heterocyclization reactions of 1H-1,2,4-triazole-3-thiols with chloroacetylenephosphonates

โœ Scribed by Elena B. Erkhitueva; Albina V. Dogadina; Andrey V. Khramchikhin; Boris I. Ionin


Book ID
113930964
Publisher
Elsevier Science
Year
2012
Tongue
French
Weight
650 KB
Volume
53
Category
Article
ISSN
0040-4039

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## Abstract The reaction of 1โ€aminoethylidenehydrazones 9 with diโ€__tert__โ€butyl dicarbonate and 4โ€dimethylaminopyridine led to the corresponding azinoisocyanates 10, which underwent thermal rearrangement under the reaction conditions to give 4โ€(__tert__โ€butoxycarbonyl)โ€5โ€methylโ€2__H__โ€1,2,4โ€triazo