A Simple and Eco-Compatible One-Pot Synthesis of New Symmetrical Dithiocarbamate Podands and Their Dynamic NMR Studies
作者:Abbas Shockravi、Mahmood Kamali、Reza Jafari
DOI:10.1080/10426507.2012.717133
日期:2013.9.1
Abstract A simple and eco-compatible synthesis of podands as 4a-i is performed using amines (3a-c ), CS2, and dichlordiamides (DCDs) (2a, c ) in the absence of a catalyst in water. Three reacting DCDs (2a-c ) were obtained in the reaction of aromatic diamines (1a, c ) with chloroacetyl chloride. Dynamic NMR spectroscopic data of three series of podands (4a-c , 4d-f , and 4g-i ) are discussed and their
摘要 在水中不存在催化剂的情况下,使用胺 (3a-c )、CS2 和二氯二胺 (DCDs) (2a, c ) 进行了一种简单且生态相容的 podands 合成 4a-i。在芳族二胺 (1a, c ) 与氯乙酰氯的反应中获得了三个反应的 DCD (2a-c )。讨论了三个系列 podands(4a-c、4d-f 和 4g-i)的动态核磁共振光谱数据,并计算了它们在聚结温度下的激活自由能(ΔG ≠ cs)。由于硫代酰胺 C-N 键的旋转和共振效应,这些 podands 的 ΔG ≠ c 归因于 14.7-17 kcal/mol 范围内的构象异构化。[本文提供补充材料。转至出版商的在线版 Phosphorus, Sulfer,