Reactivity of 4-Phenyl-1,2,4-triazoline-3,5-dione and Diethylazocarboxylate in [4+2]-Cycloaddition and Ene Reactions: Solvent, Temperature, and High-Pressure Influence on the Reaction Rate
作者:Vladimir D. Kiselev、Dmitry A. Kornilov、Ilzida I. Lekomtseva、Alexander I. Konovalov
DOI:10.1002/kin.20908
日期:2015.5
We have studied the solvent, temperature, and pressure influences on the reaction rates of cyclic and acyclic N=N bonds in the Diels–Alder and enereactions. The transfer from N‐phenylmaleimide (9) to a structural analogue, 4‐phenyl‐1,2,4‐triazoline‐3,5‐dione (2), is accompanied by the rate increase in five to six orders of magnitude in the Diels–Alder reactions with cyclopentadiene (4) and 9,10‐dimethylanthracene
Reaction of a triazolinedione with simple alkenes. Isolation and characterization of hydration products
作者:Zois Syrgiannis、Fotios Koutsianopoulos、Kenneth W. Muir、Yiannis Elemes
DOI:10.1016/j.tetlet.2008.10.150
日期:2009.1
The reaction of N-phenyltriazolinedione with three simple alkyl-substituted alkenes in water/alcohol or water/acetone solution was found to give a mixture of the corresponding ene and water addition products. The new hydration products were characterized by spectroscopy, and in one case, also by X-ray diffraction analysis. Thermodynamic parameters were determined for the reactions involving 2-methylbut-2-ene
发现N-苯基三唑啉二酮与三种简单的烷基取代的烯烃在水/醇或水/丙酮溶液中的反应得到相应的烯和水加成产物的混合物。新的水合产物通过光谱学进行表征,在一种情况下,还通过X射线衍射分析进行表征。根据对封闭的叠氮基亚胺类化合物的'S N 2-like'亲核攻击,确定涉及2-甲基丁-2-烯TriME和2,3-二甲基丁-2-烯TetraMe的反应的热力学参数。(AI)以水为中间体。
Triazolinedione additions to alkenes in protic solvents. A remarkable temperature dependence of the competing reaction paths.
作者:Yiannis Elemes、Michael Orfanopoulos
DOI:10.1016/s0040-4039(00)78814-9
日期:1991.6
The reactivity of the ene and MeOH-adduct reactions from N-Phenyl-1,2,4-triazoline-3,5-dione with tetramethylethylene (TME) shows a remarkable temperature dependence. These results are consonant with the formation of a common intermediate between the two competing reaction paths.