申请人:Larke W. Carroll
公开号:US20050131244A1
公开(公告)日:2005-06-16
A method is disclosed for the production of pentaerythritol diphosphites of high spiro isomer content. The pentaerythritol diphosphites are produced via sequential transesterification of pentaerythritol with a monophosphite followed by a substituted phenol or other alcohol, wherein the transesterification reactions are carried out under controlled conditions of temperature and pressure. The unique reaction conditions result in intermediate and final pentaerythritol diphosphites of high spiro isomer content and high total yield of the diphosphites.
本发明公开了一种生产高螺旋异构体含量的对叔丁基苯酚二磷酸酯的方法。该方法通过将对叔丁基苯酚或其他醇与单磷酸酯逐步进行酯交换反应,其中酯交换反应在控制温度和压力的条件下进行。独特的反应条件导致中间体和最终产物对叔丁基苯酚二磷酸酯具有高螺旋异构体含量和高总产率的特点。