Acceleration effect of mild organocatalytic system 2,2′-biphenol/B(OH)3 for 2-aza-Cope rearrangement
作者:Kenji Sugimoto、Ryoga Yoshida、Yuji Matsuya
DOI:10.1016/j.tetlet.2022.153922
日期:2022.7
for 2-aza-Cope rearrangement is described. Aldehydes and 1,1-diphenyl homoallylamine were converted into the corresponding homoallylamines in moderate-to-high yield in the presence of 10 mol% 2,2′-biphenol and 30 mol% B(OH)3. In contrast to the conventional 2-aza-Cope rearrangement catalyzed by strong activators, a user- and environment-friendly organocatalytic system was established using a combination
描述了通过结合弱酸(即 2,2'-联苯酚和 B(OH) 3)进行 2-aza-Cope 重排的有机催化作用。在 10 mol% 2,2'-联苯酚和 30 mol% B(OH) 3存在下,醛和 1,1-二苯基高烯丙胺以中等至高产率转化为相应的高烯丙胺。与由强活化剂催化的传统 2-aza-Cope 重排相比,使用廉价、易于处理、无害和工作台稳定的试剂组合建立了用户和环境友好的有机催化系统。