中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-(4-chloro-phenyl)-3-methyl-thiazolidine | 67224-60-6 | C10H12ClNS | 213.731 |
2-(4-氯苯基)-2,3-二甲基-1,3-噻唑烷 | 2-(4-chloro-phenyl)-2,3-dimethyl-thiazolidine | 67189-33-7 | C11H14ClNS | 227.758 |
—— | 2-(4-Chloro-phenyl)-thiazolidine-3-carbothioic acid methylamide | 112561-97-4 | C11H13ClN2S2 | 272.823 |
Systematic investigations of the kinetics of the reactions of ethyl bromoacetate (EBA) and of picryl bromide (PB) with 2-phenylthiazolidines (PT) in 100% ethanol were undertaken at 30, 35, 40, and 45 °C. The most incisive information concerning the Hammett equation comes from the extensive studies on the substituted 2-phenylthiazolidines, establishing linear Hammett plots with negative ρ values. The kinetic data, plotted in a Brønsted fashion against pKa of the corresponding thiazolidinium ions, yield linear relationships. The activation parameters were computed. The linear relationships between ΔH≠ and ΔS≠ signify a consistent mechanism throughout the series.