作者:A. P. Krysin、S. A. Amitina、T. G. Egorova、V. G. Vasiliev
DOI:10.1134/s1070363211020125
日期:2011.2
HPLC-MS method the directions of the side reactions were explored. The method has been successfully tested in a pilot installation. With 2,6-dimethylphenol instead of 2,6-di-tert-butylphenol a sharp increase occurs in the content of ethers in the reaction product. With epichlorohydrin, 2,6-di-tert-butylphenol affords a product, which is easily converted into an epoxide containing a sterically hindered phenol
2,6-二烷基苯酚与环氧乙烷,环氧丙烷和环氧氯丙烷在SnCl 4存在下于-5至+ 5°C的温度反应,会导致相应的苯酚在β的β位上形成羟基。对位取代基的脂族链。确定了2,6-二叔丁基苯酚与环氧乙烷反应的最大选择性的条件。通过HPLC-MS方法探索了副反应的方向。该方法已在试验安装中成功测试。用2,6-二甲基苯酚代替2,6-二叔丁基苯酚,反应产物中醚的含量急剧增加。含表氯醇,2,6-二酯叔丁基苯酚提供了一种产物,该产物易于转变成在其结构中含有空间位阻酚的环氧化物。