作者:I. N. Rozhkov、N. M. Karimova、Yu. L. Ignatova、A. G. Matveeva
DOI:10.1007/bf00695823
日期:1994.2
The basicity of isomeric bromoethylamines having a CF3 substituent in the α- and β-positions with respect to the amino group was studied. According to potentiometric titration in H2O, CH3NO2, and CH3CN, the basicity of α-trifluoromethylamines is 4–5 orders of magnitude lower than that of β-trifluoromethyl isomers. Quantum-chemical calculations (AM1) showed that the decrease in the basicity of α-trifluoromethylamines
研究了在氨基的α-和β-位具有CF3取代基的异构溴乙胺的碱性。根据 H2O、CH3NO2 和 CH3CN 中的电位滴定,α-三氟甲基胺的碱性比 β-三氟甲基异构体低 4-5 个数量级。量子化学计算 (AM1) 表明,α-三氟甲胺碱度的降低与氮原子处电子密度的变化无关。