[EN] A PROCESS FOR PREPARATION OF DOPO DERIVATIVES<br/>[FR] PROCÉDÉ DE PRÉPARATION DE DÉRIVÉS DOPO
申请人:METADYNEA AUSTRIA GMBH
公开号:WO2019002201A1
公开(公告)日:2019-01-03
The present invention relates to a process for the preparation of a DOPO derivative DOPO-X comprising a 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide DOPO moiety and a derivative group X according to formula 1, the process comprising the preparation of a DOPO derivative wherein X = CI comprising the steps; a) providing a solution of DOPO in a solvent, b) introducing chlorine into the DOPO solution whilst maintaining a maximum reaction temperature below 20°C forming DOPO-CI, c) optionally removing volatiles and/or crystallising DOPO-CI, d) optionally further derivatization reaction steps. The invention further relates to DOPO-CI obtainable by the process having high purity, to the use thereof in a process for preparation of further DOPO-derivatives and the high purity products obtained, in particular DOPO-EDA, DOPO-ETA or DOPO-PEPA and the use thereof in polymer composition as flame retardant.
本发明涉及一种制备DOPO衍生物DOPO-X的方法,其中包括9,10-二氢-9-氧-10-磷杂蒽-10-氧化物DOPO基团和根据式1的衍生基团X的DOPO衍生物的制备过程,该过程包括制备一个DOPO衍生物,其中X = CI,包括以下步骤:a)提供DOPO在溶剂中的溶液,b)在保持最大反应温度低于20°C的情况下向DOPO溶液中引入氯,形成DOPO-CI,c)可选择性地去除挥发物和/或结晶DOPO-CI,d)可选择性地进一步进行衍生反应步骤。该发明还涉及通过该方法获得的高纯度DOPO-CI,以及其在制备进一步的DOPO衍生物和获得的高纯度产品中的用途,特别是DOPO-EDA、DOPO-ETA或DOPO-PEPA以及其在聚合物组合物中作为阻燃剂的用途。