作者:Barbara Bortolotti、Rino Leardini、Daniele Nanni、Giuseppe Zanardi
DOI:10.1016/s0040-4020(01)80210-6
日期:1993.1
The reaction of imines with alkynes and alkenes, in the presence of 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ), to give quinoline derivatives is described. The mechanism of the annulation is discussed, and evidence supporting a non-concerted pathway, at least when the alkene is butyl vinyl ether, is reported. Preliminary information is also given about solid adducts of imines with DDQ, which do
描述了在2,3-二氯-5,6-二氰基对苯并醌(DDQ)存在下,亚胺与炔烃和烯烃的反应,得到喹啉衍生物。讨论了环化的机理,并报道了至少在烯烃为丁基乙烯基醚时支持非确定途径的证据。还给出了有关亚胺与DDQ的固态加合物的初步信息,该固态加合物似乎不参与导致喹啉的反应路径,并且应说明产物收率对起始亚胺上取代基位置的依赖性。