On January 1, 2014, He, Yun; Sun, Erxiao; Zhao, Yi; Hai, Li; Wu, Yong published an article.Formula: C9H9N3 The title of the article was The one-pot synthesis of 4-aryl-1H-1,2,3-triazoles without azides and metal catalization. And the article contained the following:
In this study, a new methodol. for the one-pot synthesis of 4-aryl-1H-1,2,3-triazoles, e.g., I (R = H, Me, Cl, F, NO2, CN), from arylglyoxaldoxime semicarbazones is presented. 4-Aryl-1,2,3-triazoles were obtained in moderate to good yields via sodium dithionite and O2, which are all efficient, safe and inexpensive reagents. This reaction is more suitable for large-scale syntheses than those using hydrazoic acid, sodium azide, or organic azides. The experimental process involved the reaction of 4-(p-Tolyl)-1H-1,2,3-triazole(cas: 5301-96-2).Formula: C9H9N3
The Article related to arylglyoxaldoxime semicarbazone oxidative heterocyclization sodium dithionite oxygen, aryl triazole preparation, dithionite oxygen oxidative heterocyclization mediator, Heterocyclic Compounds (More Than One Hetero Atom): Other 5-Membered Rings, Two Or More Hetero Atoms and other aspects.Formula: C9H9N3
Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics