The activity of three copper(I)-based catalytic systems in the preparation of various 1,2,3-triazolyl-carbanucleosides via the Huisgen azide-alkyne 1,3-dipolar cycloaddition is presented. The influence of the alkyne substituent, solvent, and heating mode were studied. The preparation of [1,2-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene]bromocopper [(IMes)CuBr] is discussed.
介绍了三种
铜 (I) 基催化体系通过 Huisgen
叠氮化物-炔 1,3-偶极环加成制备各种
1,2,3-三唑基-碳核苷的活性。研究了炔取代基、溶剂和加热方式的影响。讨论了[1,2-双(2,4,6-三甲基苯基)
咪唑-2-亚基]
溴铜[(IMes)CuBr]的制备。