Gas‐phase elimination reactions of 4‐arylideneimino‐2‐cyanoethyl‐1,2,4‐triazol‐3(2 H )‐ones, their thione analogues and 2‐glucosyl‐1,2,4‐triazole‐3(2 H )‐thiones: a kinetic and mechanistic study | Zendy

AlAwadi Nouria A. | Zendy; Ibrahim Yehia A. | Zendy; Dib Hicham | Zendy; Kaul Kamini | Zendy

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Gas‐phase elimination reactions of 4‐arylideneimino‐2‐cyanoethyl‐1,2,4‐triazol‐3(2 H )‐ones, their thione analogues and 2‐glucosyl‐1,2,4‐triazole‐3(2 H )‐thiones: a kinetic and mechanistic study

Author(s) -

AlAwadi Nouria A.,

Ibrahim Yehia A.,

Dib Hicham,

Kaul Kamini

Publication year - 2002

Publication title -

journal of physical organic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.325

H-Index - 66

eISSN - 1099-1395

pISSN - 0894-3230

DOI - 10.1002/poc.491

Subject(s) - chemistry , arrhenius equation , reaction rate constant , atmospheric temperature range , thermal decomposition , gas phase , pyrolytic carbon , decomposition , kinetics , triazole , kinetic energy , medicinal chemistry , stereochemistry , pyrolysis , organic chemistry , activation energy , thermodynamics , physics , quantum mechanics

Several 4‐arylidenimino‐2‐cyanoethyl‐1,2,4‐triazol‐3(2 H )‐ones, their 3(2 H )‐thiones and 2‐glucosyl‐1,2,4‐triazol‐3(2 H )‐thiones ( 1–12 ) were synthesized. Selective pyrolytic deprotection of these derivatives was studied in the gas phase and the kinetics of the reactions were measured for each compound. First‐order rate constants measured over a 45 °C temperature range were used to calculate the Arrhenius activation parameters. A comparison of the products and the kinetic behavior of the thermal decomposition of these compounds are discussed. Copyright© 2002 John Wiley & Sons, Ltd.

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