Thermal addition of dibenzoylacetylene to cycloheptatriene and the photo-rearrangement of the thermal adduct
作者:S. Lahiri、V. Dabral、M.V. George
DOI:10.1016/0040-4020(78)89043-7
日期:1978.1
The reaction of cycloheptatriene (CHT) with dibenzoylacetylene (DBA), in refluxing toluene gave a mixture of products consisting of 6,7-dibenzoyltricyclo[3.2.2.02.4]nona-6,8-diene 6 and 3,4-dibenzoylbicyclo [3.2.2]nona-2,6,8-triene 7. Neat heating of a mixture of CHT and DBA around 95–100° gave besides, 6 and 7, small amounts of two dimers of DBA. Photolysis of 6 in benzene solution gave a lactonic
在回流的甲苯中,环庚三烯(CHT)与二苯甲酰基乙炔(DBA)的反应得到的混合物为由6,7-二苯甲酰基三环[3.2.2.0 2.4 ] nona-6,8-二烯6和3,4-二苯甲酰基双环[3.2 ]组成的混合物.2] nona-2,6,8-triene 7。将CHT和DBA的混合物整洁地加热到95–100°,除6和7之外,还得到少量的两个DBA二聚体。6在苯溶液中的光解得到内酯重排产物。25。已经建立了各种产品的结构,并提出了合理的形成机理。