The invention relates to dimer and multimer forms of BAPO compounds of the formula (1) dimer and multimer forms of MAPO compounds of the formula (II) wherein R1, R2, and R3 independently of one another are unsubstituted or substituted C1-C12alkyl, benzyl, C1-C12alkoxy, C3-C6cycloalkyl or C5-C14aryl; Q is a di-tri or tetravalent arylene residue; n is 1-4, m is 0-2, n+m is 2, 3 or 4, with the proviso, that R1 and R3 are different from each other. The invention further relates to a process for the preparation of dimer or multimer forms of BAPO compounds of the formula (I) and of dimer or multimer forms of MAPO compounds of the formula (II), characterized in the (n + m) equivalents of a dimetalated-phosphine R1P(M)2 is reacted with one equivalent of a di-or polycarboxylic acid halogenide to form an intermediate of the formula III the intermediate is then reacted either with (n + m) equivalents of a further carboxylic acid halogenide (R2-CO-Hal) or with a halogenide R3-Hal, the reaction products are then oxidized to form phosphine oxides of the formula I or II.
本发明涉及公式(I)的
BAPO化合物的二聚体和多聚体形式以及公式(II)的
MAPO化合物的二聚体和多聚体形式,其中R1,R2和R3彼此独立地是未取代或取代的C1-C12烷基,苯甲基,C1-C12烷氧基,C3-C6环烷基或C5-C14芳基; Q是二-三或四价芳基残基; n为1-4,m为0-2,n+m为2、3或4,但R1和R3不同于对方。本发明还涉及制备公式(I)的
BAPO化合物的二聚体或多聚体形式以及公式(II)的
MAPO化合物的二聚体或多聚体形式的方法,其特征在于将(n+m)当量的二
金属化
磷R1P(M)2与一个当量的二或多
羧酸卤化物反应形成公式III的中间体,然后将中间体与(n+m)当量的进一步
羧酸卤化物(R2-CO-Hal)或卤化物R3-Hal反应,然后将反应产物氧化成公式I或II的氧化
磷化合物。