Diastereoselective synthesis of cis-fused pyrano[4,5-c]pyrrole derivatives via microwave-accelerated intramolecular Knoevenagal hetero Diels–Alder reaction
作者:Mathesan Jayagobi、Raghavachary Raghunathan
DOI:10.1016/j.tetasy.2010.10.025
日期:2010.11
The synthesis of enantiomerically pure pyrano[4,5-c]pyrroles has been accomplished by the intramolecular hetero Diels–Alder reaction of enantiomerically pure N-allyltetheredalkenyl aldehydes with various 1,3-diones. The reaction led to the formation of cis-fused enantiomerically pure pyrano[4,5-c]pyrroles in excellent yield under mild conditions and the products were characterized by spectroscopic
对映体纯的吡喃并[4,5- c ]吡咯的合成是通过对映体纯的N-烯丙基醚化烯基醛与各种1,3-二酮的分子内杂Diels-Alder反应完成的。该反应导致在温和条件下以优异的产率形成顺式对映体对映体纯的吡喃并[4,5- c ]吡咯,并且通过光谱数据表征了产物。