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Base-Induced Generation of Aryl(1,2,3-triazol-1-yl)carbenes from 1-[(N-Phenylsulfonyl)benzohydrazonoyl]-1,2,3-triazoles and Their Ring Enlargement to 3-Aryl-1,2,4-triazines.

โœ Scribed by Yuumo Tanaka; Shuji Oda; Suketaka Ito; Akikazu Kakehi


Publisher
John Wiley and Sons
Year
2005
Weight
19 KB
Volume
36
Category
Article
ISSN
0931-7597

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## Abstract magnified image Oneโ€pot reaction of 3โ€arylโ€5โ€methylโ€1,3,4โ€oxadiazolinโ€2โ€ones **1aโ€g** with ethanolamine yielded the 4โ€(2โ€hydroxyethyl)โ€2โ€arylโ€5โ€methylโ€2,4โ€dihydroโ€3__H__โ€1,2,4โ€triazolinโ€3โ€ones **2aโ€g** which were converted to the azido compounds **6aโ€g**. These azides on 1,3โ€dipolar cy