A domino process is described combining an ene reaction between two alkynes and a Diels–Alder cycloaddition of the vinylallene formed. The process accounts for the thermally induced cycloisomerization of macrocyclic triynes and enediynes to give fused tetracycles in a stereoselective manner.
多米诺反应过程描述了两个
炔烃之间的烯反应和形成的
乙烯基烯丙基的Diels-Alder环加成。该过程解释了热诱导的大环三炔和烯二炔的环异构化,以立体选择性方式产生稠合四环。