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.
环辛酸酯与1,3-二苯基异苯并呋喃的加成反应导致形成3个1:1环加合物,1、2和3和1:2环加合物4。单晶X射线分析确定3为笼型化合物通过空前的1的[4 + 2]环加成反应形成,其中苯部分的双键充当亲二烯体。