Amin, Hassan B.; Taylor, Roger published an article in 1978, the title of the article was The mechanism of the gas-phase pyrolysis of esters. Part 6. Pyrolysis of 1-arylethyl benzoates and tert-butyl phenylacetates.HPLC of Formula: 29704-38-9 And the article contains the following content:
Rate coefficients for pyrolysis of RC6H4CH(OAc)Me (R = H, p-, m-Me, -Cl, -NO2, p-CF3) were determined at 617.9-68.4 K and the log krelative values give an excellent correlation with σ+ values with ρ -0.72 at 600 K; this confirms that the polarity of the transition state for benzoate pyrolysis is greater than that for acetates and less than for carbonates. Rate coefficients for pyrolysis of RC6H4CH2CO2CMe3 (R = p-OMe, -Me, -F, -Cl, -NO2, m-Me, -Cl, H), determined at 543.3-600.8 K, give log krelative values which correlate with σ0 values with ρ 0.39 at 600 K, confirming that the polarity of the transition state for phenylacetate pyrolysis is less than that for benzoates and N-phenylcarbamates. The phenylacetate data correlate better with σn values, confirming that these are more accurate resonance-free substituent constants than are σ0 values. The experimental process involved the reaction of tert-Butyl 2-(4-nitrophenyl)acetate(cas: 29704-38-9).HPLC of Formula: 29704-38-9
The Article related to kinetics pyrolysis phenylethyl benzoate, butyl phenylacetate pyrolysis kinetics, Physical Organic Chemistry: Degradation Reactions and other aspects.HPLC of Formula: 29704-38-9
Referemce:
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