UREA NITRATE CATALYZED IMINO DIELS-ALDER REACTIONS: SYNTHESIS OF CYCLOPENTAQUINOLINES, PYRANOQUINOLINES, AND FUROQUINOLINE DERIVATIVES
作者:Marimuthu Anniyappan、Rajagopal Nagarajan、Paramasivan T. Perumal
DOI:10.1081/scc-120001514
日期:2002.1.1
ABSTRACT Urea nitrate is found to be an efficient catalyst for the imino Diels-Alder reaction of aldimines with cyclopentadiene, 3,4-dihydropyran and dihydrofuran is reported for the first time. One pot synthesis of cyclopentaquinolines from benzaldehyde, aromatic amines with cyclopentadiene catalyzed by urea nitrate is also reported.
摘要 硝酸尿素被发现是醛亚胺与环戊二烯、3,4-二氢吡喃和二氢呋喃的亚氨基Diels-Alder 反应的有效催化剂,这是首次报道。还报道了由苯甲醛、芳香胺与硝酸尿素催化的环戊二烯一锅合成环戊喹啉。