Regiospecific Synthesis of 1,4,5-Trisubstituted 1,2,3-Triazoles via Enolate–Azide Cycloaddition between 1,3-Dicarbonyl Compounds and Aryl Azides
作者:Ronald Nelson、Víctor Kesternich、Marcia Pérez-Fehrmann、Sally Jaldin、Laurence Marcourt、Philippe Christen
DOI:10.3184/174751916x14656662266973
日期:2016.8
A cycloaddition reaction at room temperature between aryl azides and 1,3-dicarbonyl compounds in the presence of potassium carbonate in dimethylsulphoxide yielded 10 4-ethoxycarbonyl-1-aryl-5-methyl-1H-1,2,3-triazoles and seven other closely-related compounds. The 1,2,3-triazoles, nine of which are new, were obtained in good to high yields and only the 1,4-regioisomers were formed.
在碳酸钾的存在下,芳基叠氮化物和 1,3-二羰基化合物在二甲基亚砜中的室温环加成反应产生 10 4-乙氧基羰基-1-芳基-5-甲基-1H-1,2,3-三唑和其他七种密切相关的化合物。1,2,3-三唑,其中九个是新的,以良好到高产率获得并且仅形成了1,4-区域异构体。