High-Pressure Diels–Alder Reaction of Cyclooctatetraene with Dimethyl 1,4-Dimethyl-7-oxabicyclo[2.2.1]hepta-2,5-diene-2,3-dicarboxylate. Single Crystalline State Valence Isomerization of a<i>syn</i>-Tricyclo[4.2.0.0<sup>2,5</sup>]octane Derivative
作者:Hitoshi Takeshita、Akira Mori、Nobuo Kato、Yoichi Kurahashi、Masahito Ito
DOI:10.1246/bcsj.68.2669
日期:1995.9
High-pressure Diels–Alder reaction of cyclooctatetraene with dimethyl 1,4-dimethyl-7-oxabicyclo[2.2.1]hepta-2,5-diene-2,3-dicarboxylate afforded six products, one of which was shown to be a 2 : 2-adduct having a syn-tricyclo[4.2.0.02,5]octane framework. Upon radiation with X-rays, the tricyclooctane derivative isomerized to a cyclooctadiene derivative.
在高压条件下,环辛四烯与二甲基1,4-二甲基-7-氧杂双环[2.2.1]庚-2,5-二烯-2,3-二羧酸酯发生Diels-Alder反应,生成了六种产物,其中之一被证实为具有顺式三环[4.2.0.02,5]辛烷骨架的2:2加合物。经X射线辐射后,三环辛烷衍生物异构化为环辛二烯衍生物。