The intramolecular Diels-Alder cycloaddition of N-dienoyl acrylimidates. New methodology for the construction of nitrogen heterocycles.
作者:K.J. Shea、J.J. Svoboda
DOI:10.1016/s0040-4039(00)85076-5
日期:1986.1
N-(3,5-Hexadienoyl)-acrylimidates, which have been synthesized by acylation of 2-ethoxy-1-aza-1,3-butadienes with 3,5-hexadienoyl chloride, are found to undergo facile Intramolecular Diels-Alder cycloadditions to afford predominately cis-hexahydroisoquinolines in good yields.
N-(3,5-己二烯酰基)-丙烯酰胺酯,已通过2-乙氧基-1-氮杂-1,3-丁二烯与3,5-己二酰氯的酰化反应合成,发现它们容易进行分子内Diels-Alder环加成反应以高收率得到主要为顺式-六氢异喹啉。