Dicobalt octacarbonyl mediated cycloaddition of dienynes in the presence of carbon monoxide has been studied. Three main competing reaction routes, two carbonylative cycloaddition reactions and a Diels-Alder reaction, have been recognized depending upon the substrate and reaction conditions. Judicious design of the substrate and selection of reaction conditions allow control of the reaction pathway.
研究人员对在
一氧化碳存在下由八羰基二
钴介导的二炔环化反应进行了研究。根据底物和反应条件的不同,发现了三种主要的竞争反应途径,即两种羰基环加成反应和一种 Diels-Alder 反应。合理设计底物和选择反应条件可以控制反应途径。