Kinetics and mechanism of reactions between 2,4,6-trinitrofluorobenzene and alcohols
作者:Luciano Forlani、Carla Boga、Marcello Forconi
DOI:10.1039/a900436j
日期:——
The kinetics of formation of some ethers from alcohols and 2,4,6-trinitrofluorobenzene were studied under first order conditions ([ROH]o > [TNFB]o). In CCl4, k (in dm3 s–1 mol–1) values are increased on increasing the values of the initial concentrations of the alcohols. This anomalous kinetic behaviour parallels that of reactionsbetween amines and activated aromatic fluoro derivatives. The presence
在一级条件下([ROH] o > [TNFB] o)研究了由醇和2,4,6-三硝基氟苯形成某些醚的动力学。在CCl 4中,k(以dm 3 s –1 mol –1为单位)的值会随着醇的初始浓度值的增加而增加。这种异常动力学行为与胺和活化的芳族氟衍生物之间的反应相似。取代过程之前存在的底物与醇相互作用说明了醇的动力学行为。
Jackson; Boos, American Chemical Journal, 1898, vol. 20, p. 447
作者:Jackson、Boos
DOI:——
日期:——
Picric acid compounds
申请人:WYETH &
公开号:US02065111A1
公开(公告)日:1936-12-22
Kumpf, Justus Liebigs Annalen der Chemie, 1884, vol. 224, p. 126
作者:Kumpf
DOI:——
日期:——
Quantitative Evaluation of the Chloride Template Effect in the Formation of Dicationic [1<sub>4</sub>]Imidazoliophanes
The formation of macrocycles containing two imidazolium rings such as 1.2X and 2.2X is anion-directed through hydrogen bonding. The template effect exerted by the chloride anion in the ring-closurereaction of the monocationic model intermediate 9+ to yield the [1(4)]imidazoliophane 2(2+) has been evaluated. This effect was quantified following the kinetics of the macrocyclization by using a UV-vis