Thermal rearrangement of 1, 1-difluorospiropentane

WR Dolbier Jr, SF Sellers, BH Al-Sader…

Index: Dolbier, William R.; Sellers, Simon F.; Al-Sader, Basil H.; Fielder, Thomas H. Journal of the American Chemical Society, 1981 , vol. 103, # 3 p. 717 - 718

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Citation Number: 11

Abstract

The thermal unimolecular rearrangement of spiropentane to methylenecyclobutane is an interesting and complex reaction, the mechanism of which has been investigated in detail. Initial cleavage of the peripheral CI-CZ bond, rather than the CI-CJ bond, was demonstrated by Gajewski,'while reversibility of this step was detected by Gilberts2 Activation parameters for logA= 15.9, Ea= 57.6 kcal/mol