Reaction of nonstabilized azomethine ylides with Mannich bases: an approach to 3-acylpyrrolidines
作者:Evgeniya V. Gorbunova、Evgeny M. Buev、Vladimir S. Moshkin、Vyacheslav Ya. Sosnovskikh
DOI:10.1016/j.mencom.2019.03.008
日期:2019.3
Mannich bases obtained from cycloalkanones and methyl-ketones decompose on heating to give α,β-enones, which react in situ with nonstabilized azomethine ylides formed from spiro[anthracene-oxazolidines]. The final products, 3-acylpyrrolidines, were obtained in yields of 21–79% by heating the starting compounds in a microwave reactor in o-xylene at 210 °C for 45 min
由环烷酮和甲基酮制得的曼尼希碱在加热时分解,得到α,β-烯酮,其与由螺[蒽-恶唑烷]形成的不稳定的偶氮甲亚胺原位反应。通过在微波反应器中于邻二甲苯中于210°C加热45分钟将起始化合物加热,可以得到最终产物3-酰基吡咯烷,产率为21–79%。