Studies of tertiary amine oxides. Part 13. Solvent effects on the rate of thermal rearrangement of N-(2,4-dinitrophenyl)piperidine N-oxide
作者:Abdul-Hussain Khuthier、Salim Y. Hanna、Khawla Y. Al-Mallah
DOI:10.1039/p29880001157
日期:——
The rearrangement of N-(2,4-dinitrophenyl)piperidine N-oxide was studied in ten aprotic solvents. Different correlations of the first-order rate coefficients (kobs.) with several solvent parameters were examined for the ten solvents with a range of 45 units in dielectric constant; the multiparameter equations of Krygowski and Fawcett, Koppel and Palm, and Kamlet and Taft were all examined. The kobs
在十种非质子传递溶剂中研究了N-(2,4-二硝基苯基)哌啶N-氧化物的重排。对于介电常数范围为45个单位的十种溶剂,研究了一级速率系数(k obs。)与几种溶剂参数的不同相关性。分别检查了Krygowski和Fawcett,Koppel和Palm以及Kamlet和Taft的多参数方程。The k obs。值与溶剂的路易斯碱度合理地相关。当排除氢键供体溶剂时,Gutmann的供体数和Dimroth的E T(30)参数。