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A new and efficient procedure for preparing 1,2,3-triazoles

✍ Scribed by Gilberto A. Romeiro; Letícia O.R. Pereira; Maria Cecília B.V. de Souza; Vitor F. Ferreira; Anna Claudia Cunha

Book ID
104257493
Publisher
Elsevier Science
Year
1997
Tongue
French
Weight
165 KB
Volume
38
Category
Article
ISSN
0040-4039

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✦ Synopsis

1,2,3-Triazoles are readily accessible in moderate to good yields by a diazo transfer reaction with I~-amino-<x,~-unsatmated ketones or esters and tosyl or mesyl azide reagent. In this methodology the nitrogen atoms N-2 and N-3 of the triazole ring are derived from diazo transfer reagent and nitrogen atom N-I is derived from the appropriate enamine.

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ChemInform Abstract: A New and Efficient
ChemInform Abstract: A New and Efficient Procedure for Preparing 1,2,3-Triazoles.
✍ G. A. ROMEIRO; L. O. R. PEREIRA; M. C. B. V. DE SOUZA; V. F. FERREIRA; A. C. CUN 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 28 KB 👁 3 views

The diazo transfer reaction of ketones or esters (I) with mesyl azide provides a new and efficient process for the synthesis of 1,2,3-triazoles (II). Using tosyl instead of mesyl azide results in generally lower yields. -(ROMEIRO, G. A.;