A compound comprising a sulfonated triorganophosphine of formula R1R2PR3[SO3M)]n, wherein R1 and R2 are selected individually from alkyl, aralkyl, and alicyclic groups; wherein R3 represents a branched divalent or polyvalent, alkylene or alicyclic radical that is bonded to the phosphorus atom and to one or more sulfonate substituents, and further wherein R3 does not contain any aryl moieties; M represents a monovalent cation; and n is an integer representing a total number of sulfonated substituents. The compound is useful as a ligand in transition metal-ligand complex catalysts that are capable of catalyzing the hydroformylation of an olefinically-unsaturated compound with carbon monoxide and hydrogen to form one or more corresponding aldehyde products. The ligand is incapable of alkyl-aryl exchange, thereby leading to reduced ligand usage and improving ligand and transition metal, e.g., rhodium, recovery and recycling, as compared with prior art ligands.
该化合物包括公式为R1R2PR3[SO3M]n的磺化三有机膦,其中R1和R2分别选自烷基,芳基烷基和脂环族基;其中R3表示与
磷原子和一个或多个
磺酸取代基键合的分支二价或多价,烷基或脂环基,而且R3不含任何芳基基团;M表示单价阳离子;n是代表
磺酸取代基的总数的整数。该化合物可用作过渡
金属
配体复合催化剂中的
配体,该催化剂能够催化烯烃不饱和化合物与
一氧化碳和氢反应,形成一个或多个相应的醛产物。该
配体无法进行烷基-芳基交换,因此与现有技术的
配体相比,可减少
配体使用量,并改善
配体和过渡
金属(例如
铑)的回收和再利用。