Intramolecular Diels-Alder Cycloadditions of Perchloro(allyloxy)- and Perchlorobis(allyloxy)cyclopentadienes
The intramolecular cycloadditions of some mono(allyloxy)- and bis(allyloxy)perchlorocyclopentadienes have been carried out.Even in the case of trisubstituted olefins, this internal cycloaddition process occurs in good yield.The allyloxy compounds (10, 11,