Addition reactions of cyclooctatetraene with 1,3-diphenylisobenzofuran the benzene ring as dienophile in a [4+2] cycloaddition reaction
作者:Katsuhiro Saito、Yoichi Omura、Etsuro Maekawa、Paul G. Gassman
DOI:10.1016/s0040-4039(01)81234-x
日期:1984.1
Addition reactions of cyclooctatetraene with 1,3-diphenylisobenzofuran resulted in the formation of three 1:1 cycloadducts, 1, 2, and 3, and a 1:2 cycloadduct, 4. Single crystal x-ray analysis established 3 to be a cage compound formed by an unprecedented [4+2] cycloaddition reaction of 1 in which the double bond of the benzene moiety acted as the dienophile.
The Addition of 1,3-Diphenylisobenzofuran to Cyclooctatetraene and to Dimethyl Cyclooctatetraene-1,2-dicarboxylate. The Benzene Ring as a Dienophile in an Intramolecular Diels–Alder Reaction
作者:Katsuhiro Saito、Yoichi Omura、Etsuro Maekawa、Paul G. Gassman
DOI:10.1246/bcsj.63.395
日期:1990.2
The reaction of cyclooctatetraene with 1,3-diphenylisobenzofuran afforded two kinds of 1:1 [2π+4π]-cycloadducts, a cage-type 1:1 cycloadduct and two classes of 1:2 cycloadducts. The cage-type compound was formed from one of the [2π+4π]-cycloadducts via an unprecedented second [2π+4π]-cycloaddition reaction in which the double bond of the benzene moiety acted as a dienophile. A similar reaction with