申请人:KOBELCO ECO-SOLUTIONS CO.,LTD.
公开号:US20190359571A1
公开(公告)日:2019-11-28
There is a demand for the development of a technique according to which sodium 2,2,6,6-tetramethylpiperidides (Na-TMPs) can be economically and efficiently synthesized through simple operations including a small number of steps under mild conditions in a short period of time. Also, there is a demand for the development of a technique according to which high-quality Na-TMPs that do not contain lithium or lithium compounds such as Li-TMP can be synthesized. The method for synthesizing sodium 2,2,6,6-tetramethylpiperidides includes a step of obtaining sodium 2,2,6,6-tetramethylpiperidides by reacting, in a reaction solvent, 2,2,6,6-tetramethylpiperidines with a dispersion product obtained by dispersing sodium in a dispersion solvent or an organosodium compound having an aromatic ring obtained through a reaction with a dispersion product obtained by dispersing sodium in a dispersion solvent.
有一种需求,即开发一种技术,通过简单操作,包括在温和条件下,短时间内进行少量步骤,经济高效地合成钠2,2,6,6-四甲基哌啶衍生物(Na-TMPs)。此外,还需要开发一种技术,用于合成不含锂或锂化合物(如Li-TMP)的高质量Na-TMPs。合成钠2,2,6,6-四甲基哌啶衍生物的方法包括一个步骤,即通过在反应溶剂中使2,2,6,6-四甲基哌啶与分散溶剂中分散的钠的分散产物或通过与分散溶剂中分散的钠的分散产物反应得到的含有芳香环的有机钠化合物反应,从而获得钠2,2,6,6-四甲基哌啶衍生物。