Basicity of nitrogen–sulphur(<scp>VI</scp>) compounds. Part 5. Ionization of trisubstituted sulphamides
作者:Séan D. McDermott、Padraig O. Burke、William J. Spillane
DOI:10.1039/p29840000499
日期:——
The ionization equilibria in base of 27 trisubstituted sulphamides, mainly represented by the following series: X-C6H4NHSO2NR2R1, where NR2R1= piperidyl, morpholinyl, and NPrn2, and RHNSO2NR2R1, where R, R1, and R2 are cyclo-C6H11, Ac, and X-C6H4 and X-C6H4, Ac, and X-C6H4, have been studied in 60% v/v ethanol–water using the potentiometric method. In a few cases pKa values have been determined by
27种三取代硫酰胺的碱中的电离平衡,主要由以下序列表示:XC 6 H 4 NHSO 2 NR 2 R 1,其中NR 2 R 1 =哌啶基,吗啉基和NPr n 2,以及RHNSO 2 NR 2 R 1,其中R,R 1和R 2是环C 6 H 11,Ac和XC 6 H 4以及XC 6 H 4,Ac和XC 6 H 4,已使用电位法在60%v / v乙醇-水中进行了研究。在少数情况下,已经通过uv方法确定了p K a值。取代基的效应在哈米特地块被关联和值通常是CA。2.6(关于磺酰苯胺离子化中的芳基连接的内源)。乙酰基的酸增强作用和甲基的酸弱化作用在一些系列中可见。