作者:Hans J.A. Lambrechts、Hans Cerfontain
DOI:10.1016/0040-4020(82)80144-0
日期:1982.1
1,2,3-Trimethylnaphthalene (1,2,3,-Me3N), 1,4,5-Me3N, 1,6,7-Me3N, 1,2,3,4-Me4N and 1,4,6,7-Me3N have been sulphonated with SO3 in nitromethane and the isomer distributions of the mono- and di-sulphonic acid mixtures, obtained by reaction with 1 equivalent of SO3 at 0° and 3 equivalents of SO3 at 12° respectively, are reported. The sulphodeprotonation isomer distribution follows the reactivity order
1,2,3-三甲基萘(1,2,3,-Me 3 N),1,4,5-Me 3 N,1,6,7-Me 3 N,1,2,3,4-Me 4 N和1,4,6,7-Me 3 N已在硝基甲烷中用SO 3磺化,单磺酸和二磺酸混合物的异构体分布是通过与1当量的SO 3在0°和3下反应获得的分别报道了在12°时的SO 3当量。如果考虑到空间因素,即不发生甲基和磺基周围的磺化质子化,则磺化质子化异构体的分布遵循由定位能量预测的反应顺序。1,4,5-Me的双磺化3 N和1,4,5,8-Me 4 N分别分别导致3,6-和2,7-二磺酸,即“非交叉”二磺酸。