作者:G. Kresze、H. Bathelt
DOI:10.1016/0040-4020(73)80167-x
日期:1973.1
1,3-cyclooctadiene, 1,3,6-cyclooctatriene and bicyclo-[4.2.0]-2,4-octadiene give normal Diels-Alder-adducts with nitrosobenzenes. In the reaction of 1,3,5-cyclooctatriene with nitro-substituted nitrosobenzenes, too, [2+4]-cycloadducts are formed which, however, rearrange by heating in solution to [2+6]-cycloadducts. These isomers are the only products isolated in the addition of nitrosobenzene and
1,3-环辛二烯,1,3,6-环辛三烯和双环-[4.2.0] -2,4-辛二烯与亚硝基苯一起生成正常的Diels-Alder加合物。在1,3,5-环辛三烯与硝基取代的亚硝基苯的反应中,也形成了[2 + 4]-环加合物,但是,在溶液中加热使其重排为[2 + 6]-环加合物。这些异构体是在亚硝基苯中添加亚硝基苯及其对氯衍生物而分离出的唯一产物。