A novel synthesis of 2,5-dihydropyrrole derivatives as enantiomerically enriched building blocks
作者:Christophe Cinquin、Michel Bortolussi、Robert Bloch
DOI:10.1016/0040-4020(96)00323-7
日期:1996.5
A general synthesis of optically active 2,5-dihydropyrroles (3-pyrrolines) substituted at the 2-position by a functionalized chain is described. A highly stereoselective intramolecular Michael reaction afforded the five-membered nitrogen rings with an excellent enantiomeric purity. The unsaturation was generated by a retro Diels-Alder reaction.
描述了在2位被官能化的链取代的旋光的2,5-二氢吡咯(3-吡咯啉)的一般合成。高度立体选择性的分子内迈克尔反应提供了具有优异对映体纯度的五元氮环。不饱和是通过逆狄尔斯-阿尔德反应产生的。