Nickel complexes of 2-amino and 2-hydroxy-2-phosphinoalkanoic acid derivatives, processes for the preparation of these nickel complexes and their use as catalysts for the oligomerization or polymerization of olefins

摘要

The invention relates to novel metal complexes of 2-amino- -und 2-hydroxy-2-phosphino alkanic acid derivatives (2-amino-- and 2-hydroxy-2-phosphinoalkanoate-transition metal derivatives), a method for the production of said compounds from metal-free 2-amino- und 2-hydroxy-2-phosphino-alkanic acid derivatives and 2-phosphoniobis (2-hydroxy alkanic acid) derivatives and the use of said metal complexes as catalysts for the oligomerization or polymerization of 1-olefins. The inventive metal complexes of 2-amino- and 2-hydroxy-2-phosphino-alkanic acid derivatives are reproduced in general formula I(A), wherein A is the same as -+NHR4R5 (type 1) or -OH (with +NH2R4R5 as a counter ion: type 2), and Y is a complex fragment (M, 1/2M, MLn oder 1/2MLn), wherein M is a metal. Said metal complexes are produced from the corresponding starting compounds, wherein phosphorus includes a free electron pair, instead of the complex fragment Y, a boron compound BR3 or a radical -C ( (COO- ) (OH) R1). The oligomerization or 1-olefins is carried out by means of catalysis using the inventive metal complexes in a suitable solvent.