An enolate-mediated regioselective synthesis of 1,2,3-triazoles via azide-aldehydes or ketones [3+2]-cycloaddition reactions in aqueous phase
作者:Anupam Tripathi、Chandrashekhar V. Rode、Jordi Llop、Subhash P. Chavan、Sameer M. Joshi
DOI:10.1016/j.tetlet.2020.151662
日期:2020.3
arylazides into the corresponding trizoles via phase transfer catalyst-assisted [3+2] cycloaddition reaction under basic conditions in aqueous medium is reported. This synthetic methodology, which offers high yields and excellent regioselectivity for varieties of triazoles at 100 °C for 24 hr- 48 hr and this ‘greener’ synthesis constitutes an alternative to the previously reported well established click
报道了在碱性条件下在水性介质中经由相转移催化剂辅助的[3 + 2]环加成反应将芳基叠氮化物直接转化为相应的三唑的合成途径。这种合成方法可在100°C下保持24小时至48小时,从而对各种三唑类化合物提供高收率和出色的区域选择性,并且这种“绿色”合成方法是对先前报道的成熟点击反应的替代。