Synthesis of novel selenium and tellurium-containing tetrazoles: a class of chalcogen compounds with antifungal activity
摘要:
We describe herein the synthesis and antifungal activity of new 5-arylchalcogenoalkyl-1H-tetrazoles 4. Arylchalcogenoalkyl-1H-tetrazoles 4 have been synthesized in high yields by reaction of arylchalcogenolate anions with chloronitriles 2, and subsequent [2+3] cycloaddition of resulting arylchalcogenoalkylnitriles 3 with sodium azide by zinc catalysis in aqueous solution. The obtained compound 4a was screened for antifungal activity and presented inhibitory property against seven fungal strains. This protocol is an efficient method to produce new selenium-nitrogen compounds with antifungal activity. (C) 2012 Published by Elsevier Ltd.
A photoactive charge transfer complex protocol for the generation of cyanoalkyl radicals from cyclobutanone oxime esters with dichalcogenides is established.
建立了从环丁酮肟酯与二硫属化物生成氰烷基自由基的光活性电荷转移复合物方案。
Metal-free chalcogenation of cycloketone oxime esters with dichalcogenides
We report the metal-free chalcogenation of cycloketone oxime esters with dichalcogenides via a radical process. Because of the metal-free condition and use of readily accessible dichalcogenides, this method is an effective and green strategy for the synthesis of chalcogen-substituted butyronitrile.
Synthesis of novel selenium and tellurium-containing tetrazoles: a class of chalcogen compounds with antifungal activity
作者:Francieli M. Libero、Maurício C.D. Xavier、Francine N. Victoria、Patrícia S. Nascente、Lucielli Savegnago、Gelson Perin、Diego Alves
DOI:10.1016/j.tetlet.2012.04.040
日期:2012.6
We describe herein the synthesis and antifungal activity of new 5-arylchalcogenoalkyl-1H-tetrazoles 4. Arylchalcogenoalkyl-1H-tetrazoles 4 have been synthesized in high yields by reaction of arylchalcogenolate anions with chloronitriles 2, and subsequent [2+3] cycloaddition of resulting arylchalcogenoalkylnitriles 3 with sodium azide by zinc catalysis in aqueous solution. The obtained compound 4a was screened for antifungal activity and presented inhibitory property against seven fungal strains. This protocol is an efficient method to produce new selenium-nitrogen compounds with antifungal activity. (C) 2012 Published by Elsevier Ltd.