Ring-Opening Reactions of Fluorocyclopropanes with Halogens: A General and Useful Route to 1, 3-Dihalofluoropropane Derivatives

ZY Yang, PJ Krusic, BE Smart

Index: Yang, Zhen-Yu; Krusic, Paul J.; Smart, Bruce E. Journal of the American Chemical Society, 1995 , vol. 117, # 19 p. 5397 - 5398

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Citation Number: 13

Abstract

Fluorine substituents significantly affect both the structure and the reactivity of cyclopropanes.'Hexafluorocyclopropane (1) is much less stable thermally than its hydrocarbon counterpart, 2 and its strain energy is about twice that of cy~ lopropane.'~,~ At 170-190" C, 1 extrudes difluorocarbene (Ea= 38.6 kcal/mol), 2b which can be trapped by alkenes to give difluorocyclopropane derivativesk4 The: CFZ extrusion process is ...