The hydrolysis kinetics of N-cyanoazoles in alkaline solutions is described by a first-order kinetic equation with respect to the substrate and concentration of hydroxide ions. The hydrolysis rate constants increase with increasing number of nitrogen atoms in the heterocyclic moiety and decrease with introduction of the annelated benzene ring.
Purygin, P. P.; Pan'kov, S. V., Russian Journal of Organic Chemistry, 1995, vol. 31, # 6, p. 865 - 867
作者:Purygin, P. P.、Pan'kov, S. V.
DOI:——
日期:——
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作者:S. V. Pan'kov、N. A. Belyakova、V. V. Vishnyakov、P. P. Purygin
DOI:10.1023/a:1012401028728
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Phenols with pK(a) greater than or equal to 7 react with 1-cyanoimidazole and 1-cyano-2-methylimidazole to give addition products at the cyano group; phenols with pK(a) less than or equal to 1 give rise to the corresponding quaternary salts, 1-cyanoimidazolium phenolates; phenols with pK(a) approximate to 4 do not react with 1-cyanoimidazoles.
Reaction of N,N-dimethylaniline with N-cyanoazoles according to electrophilic aromatic substitution pattern