Abstract Reaction between substituted thiazolylamine or oxazolylamine, triethyl orthoformate and sodium azide in the presence of tributylmethylammonium chloride in DMSO furnishes 1-substituted 1H-1,2,3,4-tetrazole in high yield.
Fe3O4@Hydrotalcite-NH2-CoII NPs: A novel and extremely effective heterogeneous magnetic nanocatalyst for synthesis of the 1-substituted 1H-1, 2, 3, 4-tetrazoles
promotes condensation between sodium azide, triethyl ortho-formate, and diversity of heterocyclic/aromatic amines. Also, an environmentally toxic solvent was eliminated. A significant improvement in the synthetic efficacy (95%, yield) was obtained by this new sustainable and eco-friendly protocol as well as high purity. The current procedure as a green protocol offers benefits including a simple operational
2-(1H-Tetrazol-1-yl)thiazole: Complexation and copper-assisted tetrazole ring transformation
作者:Sergei V. Voitekhovich、Yuri V. Grigoriev、Alexander S. Lyakhov、Vadim E. Matulis、Ludmila S. Ivashkevich、Oleg A. Ivashkevich
DOI:10.1016/j.poly.2019.07.030
日期:2019.10
ate. Formation of complex 2 with ethc ligand can be explained by tetrazole ring-openingreaction of tth followed by addition of ethanol to the intermediate N-(thiazol-2-yl)cyanamide (N-tca). This assumption was confirmed by isolation of complex 2 under interaction of N-tca with copper(II) chloride in ethanol. Transformation of the tetrazole ring was not observed under interaction of tth and copper(II)
Cu(II)/Triazine-Based Dendrimer as an Efficacious Recoverable Nano-catalyst for the Preparation of 1-Substituted-1<i>H</i>-1,2,3,4-Tetrazoles under Solventless Conditions
作者:Samaneh Javdan、Farid Moeinpour、Fatemeh S. Mohseni-Shahri
DOI:10.1080/00304948.2022.2057143
日期:2022.7.4
Published in Organic Preparations and Procedures International: The New Journal for Organic Synthesis (Vol. 54, No. 4, 2022)