57297-57-1Relevant articles and documents
Energy Profile of the o-Quinodimethane Benzocyclobutene Equilibrium, II
Roth, Wolfgang R.,Scholz, Bernhard P.
, p. 3741 - 3750 (2007/10/02)
The kinetics of the decomposition of keton 3 yielding o-quinodimethane (2) (Ea = 25.6 kcal/mol; A = 3.1x1013s-1) and its cyclisation to benzocyclobutene (1) (Ea = 26.9 kcal/mol; A = 2.1x1012s-1) is measured by shock tube technic.From the temperature dependence of the equilibrium 1 2, which is studied by the same method, the enthalpy of formation of o-quinodimethane (2) is established to be ΔH0f(g) = 60.8 kcal/mol.