Aluminum alkyl complexes as cocatalysts

US6596890B1 · kind B1 · utility

Assignee

• Merck Patentgesellschaft · DE

Inventors

• Eike Poetsch · Mühltal, DE
• Ludwig Pohl · Darmstadt, DE
• Karin Weiss · Bayreuth, DE
• Eva Maria Auth · Fulda, DE
• Thomas Metzner · Bindlach, DE
• Herbert Schumann · Berlin, DE
• Corinna Wassermann · Berlin, DE
• Michael Frick · Berlin, DE
• Bernd Heymer · Berlin, DE
• Stefan Schutte · Berlin, DE
• Ulf Dümichen · Milzau, DE
• Elmar Hecht · Ribnitz-Damgarten, DE

Key dates

• Filing date: Nov 25, 1998
• Grant date: Jul 22, 2003
• Expiry date: Nov 25, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/943
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Organometallic aluminum compounds of the general formula (I) whereX1 is NH, NH2*, NH—A*, N—A, N(A)2*, O, OA*, O-Aryl*, S, SA*, P, P(A)2* or a single bond,X2 is NH, N—A, O, S, PA or X1 coordinated to Al(R1)3, or a single bond,R1 is H; Hal if n=0; A which may be covalently bound to Al; Si(A)3 if X1=O,R2 is A or divalent aryl groups defined note particularly below or divalent unsaturated aliphatic groups defined more particularly below,R3 and R4 are, independently of one another, a bond or R2 or Si(A)3 or Si(A)2,Z1 is a bond or H bound to R2,Z2 is a bond or H bound to R2 or R3,A is branched or unbranched C1-C7-alkyl, C1-C7-alkylidene or C1-C7-alkenylidene,Aryl is phenyl, naphthyl,Hal is F, Cl,and, independently of one another,n, m, p and l are 0 or 1 and q is 1 or 2, where &Sgr;l+m+n≧3.