42141-09-3Relevant academic research and scientific papers
Synthesis of Trisubstituted 1,2,4-Triazoles from Azlactones and Aryldiazonium Salts by a Cycloaddition/Decarboxylation Cascade
Yu, Xiao-Ye,Xiao, Wen-Jing,Chen, Jia-Rong
supporting information, p. 6994 - 6998 (2019/11/13)
Azlactones, also known as oxazolones, possess multiple reactive sites, and are thus widely used as versatile class of reagents in organic synthesis, particularly in cycloaddition reactions for heterocycle synthesis. However, the use of azlactones as three
Synthesis of 1,3,5-trisubstituted-1,2,4-triazoles by microwave-assisted N-acylation of amide derivatives and the consecutive reaction with hydrazine hydrochlorides
Lee, Jongbok,Hong, Myengchan,Jung, Yoonchul,Cho, Eun Jin,Rhee, Hakjune
, p. 2045 - 2051 (2012/04/10)
Facile and efficient procedures for the N-acylation reaction of amide derivatives with various acid anhydrides and the cyclization reaction of N-acylated amide derivatives with various hydrazine hydrochlorides were described. The reactions were carried out under microwave irradiation to give products in good yields in a few minutes. The synthesis of 1,3,5-trisubstituted- 1,2,4-triazoles from benzamides can also be accomplished in a simple one-pot sequential reaction.
Synthese et reactivite de quelques α-amino azocomposes: mecanisme de la cyclisation thermique en triazoles-1,2,4
Metra, Pierre,Hamelin, Jack
, p. 285 - 290 (2007/10/02)
The reaction of O-mesitylenesulfonylhydroxylamine (MSH) with hydrazones leads to carbon amination with the formation of α-amino azo compounds.Thermolysis of these compounds affords 1,2,4-triazoles.The mechanism of this cyclization is discussed.
