摘要:
The present invention relates to the preparation of novel catalysts made from transition metal compounds and “tridentate” 4,5-diphosphinoacridine ligands (“acriphos”). The novel ligands employed herein are diphosphine compounds of 4,5-disubstituted acridine which coordinate transition metals in a three-fold way with the two phosphorus atoms and the acridine nitrogen. The invention also relates to the use of the novel catalysts for the catalysis of carbon monoxide conversion via the water-gas shift reaction (WGSR: CO+H2O→CO2+H2) and for the catalysis of the following reactions: hydroformylation, carbonylation, carboxylation, hydrogenation, hydrocyanogenation, hydrosilylation, polymerization, isomerization, cross-couplings and metathesis. The invention further relates to heretofore unknown syntheses of the 4,5-diphosphinoacridines through the reaction of 4,5-difluoroacridine with alkali metal phosphides [R2P−M+(M+═Li+, Na+, K+, Rb+, Cs+, preferably K+)] or through the reaction of 4,5-dibromoacridine with chlorophosphines (R2PCl) and magnesium, and to the preparation of 4,5-difluoroacridine and 4,5-dibromoacridine.
摘要翻译:本发明涉及由过渡金属化合物和“三齿”4,5-二磷酸吖啶配体(“acriphos”)制备的新型催化剂的制备。 本文中使用的新型配体是4,5-二取代吖啶的二膦化合物,其以三重方式与两个磷原子和吖啶氮配位过渡金属。 本发明还涉及新催化剂用于通过水煤气变换反应(WGSR:CO + H 2→CO 2 + H 2)催化一氧化碳转化的用途,并且用于催化下列反应:加氢甲酰化,羰基化, 羧化,氢化,氢氰化,氢化硅烷化,聚合,异构化,交联和复分解。 本发明还涉及通过4,5-二氟吖啶与碱金属磷化物[R2P-M +(M + = Li +,Na +,K +,Rb +,Cs +,优选K +)]的反应的4,5-二磷杂吖啶的未知合成,或 通过4,5-二溴吖啶与氯膦(R2PCl)和镁的反应,以及制备4,5-二氟吖啶和4,5-二溴吖啶。