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- W2950876500 abstract "The gas-phase pyrolysis of three secondary acetates in the temperature range of 290-350°C and the pressure range of 40-236 mm Hg reveals a homogeneous first-order law and unimolecular elimination. The rate constants are given by the following Arrhenius equations: isopropyl fluoroacetate: isopropyl chloroacetate: isopropyl iodoacetate: The differences in rates I > Br > Cl > F apparently question previous assumptions where the pyrolyses of esters follow the same sequence as acid strength. The experimental data give a good correlation with σ* values, where ρ* = -1.85 at 330°C. Some kind of discrete bond polarization at the CαO bond of the acetate in the cyclic transition state seems to be involved in this type of reactions." @default.
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- W2950876500 date "1977-09-01" @default.
- W2950876500 modified "2023-10-06" @default.
- W2950876500 title "Kinetics of the gas-phase elimination of isopropyl ?-halo acetates and the taft correlation" @default.
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- W2950876500 doi "https://doi.org/10.1002/kin.550090511" @default.
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