In 2022,Cui, Menghan; Wang, Rong; Yang, Qing; Kuang, Chunxiang published an article in Journal of Organic Chemistry. The title of the article was 《Copper-Promoted One-Pot Sandmeyer-Type Reaction for the Synthesis of N-Aryltriazoles》.Category: triazoles The author mentioned the following in the article:
Herein, the copper-catalyzed one-pot Sandmeyer-type reaction of aromatic amines with triazoles to afford N-aryl-1,2,3-triazoles such as I [Ar = Ph, 4-MeC6H4, 2-naphthyl, etc.; R = H, 4-Me, 3-Me, 4-C(O)OMe, 4-Ph; X1 = N, CH; X2 = N, CH;] was reported. Diazonium salts, formed from aromatic amines and tert-Bu nitrite in the presence of fluoroboric acid, reacted with triazoles in a copper-catalyzed Sandmeyer-type reaction. The reaction proceeded under mild conditions to afford N-aryltriazoles such as I in moderate to good yields. This method was amenable to a wide range of aromatic amines and triazoles and showed diverse functional group tolerance. Inhibition of the reaction upon the addition of free radical scavengers suggested a radical pathway, in which the aryl radical, copper, and triazole formed a complex that underwent reductive elimination to gave aryltriazole compounds such as I; this was consistent with the mechanism underlying the Sandmeyer reaction. Thus, a new effective strategy for the construction of C-N bonds via Sandmeyer-type reactions and a valuable alternative approach for the synthesis of aryltriazole derivs such as I was demonstrated. In the experiment, the researchers used many compounds, for example, 1H-1,2,3-Triazole(cas: 288-36-8Category: triazoles)
1H-1,2,3-Triazole(cas: 288-36-8) belongs to triazoles. Triazoles are an important group of nitrogen-containing five-membered heterocyclic scaffolds. Triazoles are core structures of several drugs and pharmaceutical agents. Triazole derivatives possess antimicrobial, antiparasitic, antidiabetic, analgesic, and anti-inflammatory properties Category: triazoles
Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics