Kinetics and mechanism of the interaction of amines with aryl ?-haloethyl sulphones
作者:Viktor N. Matvienko、Igor F. Perepichka、Anatoly F. Popov、Zhanna P. Piskunova
DOI:10.1002/poc.610071002
日期:1994.10
temperature and deuterium isotope effect, on the rate of phenyl β-bromoethyl sulphone and aryl β-chloroethyl sulphone 1,2-elimination by reaction with amines in acetonitrile was investigated. On the basis of a comparative analysis of the ρ0, β, kH/kD, ΔH‡ and ΔS values obtained with those for the reaction of β-halopropiophenone 1,2-elimination, the conclusion was drawn that the E2 mechanism with an
研究了胺碱性,底物结构,温度和氘同位素效应等多种因素对与乙腈中的胺反应消除苯基β-溴乙基砜和芳基β-氯乙基砜1,2-的速率的影响。在ρ的比较分析的基础上0,β,ķ ħ / ķ d,ΔH‡和Δ小号与β-halopropiophenone 1,2-消去的反应而获得的值,得出的结论是得出的ë 2在研究的条件下,给定的底物会发生类似阴离子的过渡态的机理。