Diene-transmissive Diels-Alder Reaction Using 2-Ethoxy-3-methylene-1,4-pentadiene and 2-(2-Bromo-1-ethoxyethyl)1,3-butadiene
作者:Shuji Kanemasa、Hirohiko Sakoh、Eiji Wada、Otohiko Tsuge
DOI:10.1246/bcsj.58.3312
日期:1985.11
hyl)-1,3-butadiene, have been synthesized and their diene-transmissive Diels-Alder cycloadditions are investigated. The initial Diels-Alder reaction selectively occurs not across the diene part substituted with the alkoxyl moiety but the monosubstituted diene. Some cross types of diene-transmissive Diels-Alder reaction are demonstrated using the triene equivalent and two different dienophiles.
一种新的交叉共轭三烯 2-ethoxy-3-methylene-1,4-pentadiene 和三烯等价物 2-(2-bromo-1-ethoxyethyl)-1,3-butadiene 已被合成,它们的二烯研究了透射 Diels-Alder 环加成反应。最初的 Diels-Alder 反应不是选择性地发生在被烷氧基部分取代的二烯部分,而是发生在单取代的二烯上。使用三烯等价物和两种不同的亲二烯体证明了一些交叉类型的二烯传输 Diels-Alder 反应。