Use of gas-phase (1)H NMR to determine the kinetics of unimolecular rearrangement of 2,2-dichloro-1-methylenecyclopropane and the bimolecular dimerization of (dichloromethylene)cyclopropane |
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| Authors: | Shtarov Alexander B Krusic Paul J Smart Bruce E Dolbier William R |
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| Institution: | Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, USA. |
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| Abstract: | Gas-phase (1)H NMR analysis has been applied to investigate the kinetics of the unimolecular rearrangement of 2,2-dichloro-1-methylenecyclopropane (1) to (dichloromethylene)cyclopropane (2) k(1) = 7.9 x 10(12) exp(-34.4 +/- 0.6 kcal mol(-1)/RT)], as well as for the subsequent second-order dimerization of 2 k(2) = 2.4 x 10(6) exp(-18.5 +/- 1.1 kcal mol(-1)/RT)] to form 7,7,8,8-tetrachlorodispiro2.0.2.2]octane (3) |
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