Aromatic reactivity. Part XXXVII. Detritiation of substituted 1- and 2-tritionaphthalenes
作者:C. Eaborn、P. Golborn、R. E. Spillett、R. Taylor
DOI:10.1039/j29680001112
日期:——
Rates of detritiation in trifluoroacetic acid have been measured for a series of X-1- and X-2-tritionaphthalenes. Rates at 70·0°(in some cases, shown italicized, obtained by extrapolation from measurements at other temperatures), relative to that of the parent 1- or -2-tritionaphthalene, are as follows: (a) 1-tritio-compounds; (X =) 2-Me 300; 3-Me 2·75; 4-Me 83; 5-Me 2·18; 6-Me 1·31; 7-Me 2·90; 8-Me
已经测量了一系列X-1-和X-2-tritionaphthalenes在三氟乙酸中的降解速率。相对于母体1-或-2-三苯并萘的比率为70·0°(某些情况下,显示为斜体,是通过在其他温度下的外推法得出的),其比率如下:(a)1-三化合物; (X =)2-Me 300;3Me 2·75;4-我83 ; 5Me 2·18;6-Me 1·31;7-Me 2·90;8-我1·53; 2-OMe 2·2 ×10 4;4-OMe 8600 ; 5-OMe 3·87;4相15·9;2-F 1·71;4-F 4·6;5-F 0·043;8-F 0·053;2-氯0·26;3-氯0·0023;4-Cl 0·265;5-氯0·028;6-氯0·032;7-CI 0·138;8-CI 0·043;2-溴0·165;4-溴0·135; 5-溴0·025;8-溴0·047;2-I 0·32;4-I〜0 ·18;8-I