✦ LIBER ✦

The Gas-phase thermal unimolecular isomerization of n-propylidenecyclopropylamine to 5-ethyl-1-pyrroline

✍ Scribed by Alan T. Cocks; Kurt W. Egger

Publisher: John Wiley and Sons
Year: 1972
Tongue: English
Weight: 279 KB
Volume: 4
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550040205

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✦ Synopsis

The gas-phase thermal isomerization of N-propylidenecyclopropylamine has been studied in the temperature range of 573" to 635°K. The reaction is homogeneous and kinetically first order and yields 5-ethyl-1-pyrroline as the sole product. The rate constants are independent of pressure in the range of 2.5 to 55 torr and fit the Arrhenius relationship log k(sec-') = (14.05 f 0.06) -(47.77 0.16)/0 where 6 = 2.303 RT in units ofkcal/mole, or log k(sec-l) = (14.05 k 0.06) -(199.9 0.7)/8, where e = 2.303RT in kJ/mole. From considerations of a biradical pathway it is concluded that the resonance stabilization energy of the substituted 2-aza-ally1 radical is very similar to that of the methallyl radical.

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The Gas-Phase Thermal Decomposition of 5

The Gas-Phase Thermal Decomposition of 5-Ethyl-1-pyrroline

✍ Alan T. Cocks; Kurt W. Egger 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 German ⚖ 370 KB 👁 1 views

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