Thermal and photochemical deazetations of fluorine-substituted 4-methylenepyrazolines. The kinetic behavior of trimethylenemethanes

WR Dolbier Jr, CR Burkholder

文献索引：Dolbier Jr.; Burkholder Journal of the American Chemical Society, 1984 , vol. 106, # 7 p. 2139 - 2142

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被引用次数: 14

摘要

Abstract: 4-(Difluoromethylene)-l-pyrazoline and 4-(fluoromethylene)-l-pyrazoline were observed to undergo thermal and photochemical deazetation in the gas phase as well as in solution to form mixtures of methylenecyclopropanes. The gas-phase and solution-phase, thermal, and photochemical results are contrasted, and the observed kinetically controlled product ratios are compared with the very different equilibrium values. As a result, ...