Synthesis of Diverse <i>N</i>-Acryloyl Azetidines and Evaluation of Their Enhanced Thiol Reactivities
作者:Maximilian D. Palkowitz、Bo Tan、Haitao Hu、Kenneth Roth、Renato A. Bauer
DOI:10.1021/acs.orglett.7b00788
日期:2017.5.5
Acyl azetidines exhibit nonplanar hybridization, leading to lower amide-like character of the corresponding (O)C–N bonds. This impacts N-acryloyl azetidines by producing enhanced electrophilicy at appended Michael acceptors. Herein, reactivity data are reported in the presence of glutathione (GSH) in phosphate buffer (pH 7.4) at 37 °C. Wide reactivity ranges are observed by varying substitution at
酰基氮杂环丁烷显示出非平面杂交,从而导致相应的(O)C–N键具有较低的酰胺样特征。通过在附加的迈克尔受体上产生增强的亲电子性,这影响了N-丙烯酰基氮杂环丁烷。本文中,报道了在37°C磷酸盐缓冲液(pH 7.4)中存在谷胱甘肽(GSH)的情况下的反应性数据。通过改变迈克尔受体上的取代或调节氮杂环丁烷C3位上取代基的吸电子特性,可以观察到较宽的反应范围。