Kinetics and mechanism of liquid-phase nitration of 2,4,6-tri-t-butylphenol

作者: E. Ya. Davydov , S. Korcek , R. K. Jensen , G. E. Zaikov

DOI: 10.1080/00914039708031485

关键词: Reaction rateSide reactionKineticsPhysical chemistryNitrationBatch reactorReaction mechanismReaction rate constantOrganic chemistryHydrogen atom abstractionChemistry

摘要: Abstract Rates of reaction 2,4,6-Tri-t-butylphenol with nitrogen dioxide (1000 ppm) have been determined in a batch reactor. The kinetics has qualitative distinctions according to the initial phenol concentration hexadecane solution. decay proceeds fixed rate time depending on flow NO2 at [PhOH]0 = 4.0·10 At[PhOH]0 6.0·10−5M is controlled by first order law. constant phenolic hydrogen atom abstraction k1 5.9·-103 exp (-10kJ/RT), M−1s−1. At 22°C and phenoxy radical recombination 76.5 formation products studied UV spectroscopy. mechanism nitration side reactions reactor discussed.

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