作者:Theophil Eicher、Manfred Abel
DOI:10.1055/s-1987-27997
日期:——
Synthesis of Heptafulvenes and Related Seven-Membered Ring Systems from Triafulvenes Triafulvenes 1 are reacted with a series of donor substituted 1,3-dienes 2 in a Diels-Alder addition to yield bicyclic methylene cyclopropanes 3. The primary Diels-Alder adducts are transformed either to 1,6-diphenyl-substituted heptafulvenes 5 or to other seven-membered ring systems 6-9,12.
从三富集酮合成七碳烯烃和相关的七元环体系 三富集酮 1 与一系列供体取代的 1,3-二烯 2 发生 Diels-Alder 加成反应,生成双环亚甲基环丙烷 3。 一级 Diels-Alder 加合物可转化为 1,6-二苯基取代的七富烯 5 或其他七元环系统 6-9、12。