Pyrolyse du Diméthylidène-2, 3-oxa-7-bicyclo[2.2.1]heptane

Benzocyclobutene 10 and 3-oxabicyclo [3.2.0]hepta-1, 4-diene 11 are formed by gas-phase pyrolysis of the title compound 9 . The results are discussed with reference to the estimated reaction parameters. It is found that the activation due to oxygen in 9 is relatively weak in comparison to its effect on the reactivity of oxaquadricyclanes 1 .