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首页> 外国专利> method for producing organophosphate derivatives of 2,4 - di - butylphenols, 4,4 '- dihalogenmagnesium connections of the biphenyls and the use of the organophosphate derivatives for the stabilization of plastics, especially in polyolefinformmassen.

method for producing organophosphate derivatives of 2,4 - di - butylphenols, 4,4 '- dihalogenmagnesium connections of the biphenyls and the use of the organophosphate derivatives for the stabilization of plastics, especially in polyolefinformmassen.

机译：制备2，4-二丁基苯酚的有机磷酸酯衍生物，联苯的4，4′-二卤化镁连接的方法，以及有机磷酸酯衍生物在稳定塑料中的用途，特别是在聚烯烃甲酸酯中。

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Process for the preparation of organophosphorus derivatives of 2,4-di-t-butylphenol having a high content of organophosphorus derivatives of biphenyl, characterised in that, in the first step, a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35 is reacted under Grignard conditions with magnesium to give the corresponding Grignard compound, which is further reacted, in a second step, with bis(2,4-di-t-butylphenyl) chlorophosphite of the formula IV …IMAGE… to form a mixture in which at least 50% by weight of the phosphorus is bound in the form of tetrakis(2,4-di-t-butylphenyl)-4,4'-biphenylene diphosphonite of the formula I …IMAGE… the bonding of the phosphorus being determined by 31P-NMR analysis. …??The invention furthermore relates to a polyolefin moulding composition which contains tetrakis(2,4-di-t-butylphenyl)- 4,4'-biphenylene diphosphonite of the formula I prepared by reacting a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35, with magnesium to give the Grignard compound and subsequent reaction thereof with bis(2,4-di-t-butylphenyl) chlorophosphite. …??The moulding composition has improved properties compared with moulding compositions which contain said phosphonite prepared in accordance with the prior art. …??The invention also relates to a process for the preparation of 4,4'-dihalomagnesium compounds of biphenyl by reacting a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35 with magnesium in the absence of an entrainer, in which process a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35 is reacted with finely divided magnesium kept in suspension.
机译：具有高含量联苯有机磷衍生物的2,4-二叔丁基苯酚有机磷衍生物的制备方法，其特征在于，第一步中的4,4'-二卤代联苯的卤素原子量为在格氏条件下至少使35与镁反应，得到相应的格氏化合物，其在第二步中进一步与式IV的双（2,4-二叔丁基苯基）氯代亚磷酸酯反应。形成一种混合物，其中至少50％（重量）的磷以式I的四（2,4-二叔丁基苯基）-4,4'-联苯撑二亚膦酸酯的形式结合…<图像>…通过31 P-NMR分析确定磷的键合。本发明还涉及一种聚烯烃模塑组合物，其包含通过使4，4′-二卤代联苯反应制备的式I的四（2，4-二叔丁基苯基）-4，4′-联苯二亚膦酸酯。其卤素的原子量至少为35，与镁形成格利雅化合物，随后使其与双（2,4-二叔丁基苯基）氯亚磷酸酯反应。与包含根据现有技术制备的所述亚膦酸酯的模塑组合物相比，该模塑组合物具有改善的性能。本发明还涉及通过在不存在卤素的情况下使卤素的原子量至少为35的4,4'-二卤代联苯与镁反应来制备联苯的4,4'-二卤代联铵化合物的方法。夹带剂，在该方法中，使卤素的原子量至少为35的4,4'-二卤代联苯与保持悬浮状态的细分镁反应。

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