23.
    发明专利
    未知

    公开(公告)号:AT236180T

    公开(公告)日:2003-04-15

    申请号:AT00956407

    申请日:2000-08-08

    Applicant: BASF AG

    Abstract: Bisimine compounds of the formula (I) where the symbols have the following meanings: A is a nonmetal selected from among N, S, O and P, R 1 is a radical of the formula NR 5 R 6 , R 2 is a radical of the formula NR 5 R 6 or NR 7 R 8 , alkyl, aryl or cycloalkyl, R 5 and R 6 together with the N atom form a 5-, 6- or 7-membered ring in which one or more of the -CH- or -CH 2 - groups may be replaced by suitable heteroatom groups and which may be saturated or unsaturated and unsubstituted or substituted or be fused with further carbacyclic or heterocarbacyclic 5- or 6-membered rings which may in turn be saturated or unsaturated and substituted or unsubstituted, and R 7 and R 8 are, independently of one another, alkyl, aryl or cycloalkyl radicals, and R 3 , R 4 are, independently of one another, H or alkyl, aryl or cycloalkyl radicals, and n is 1 or 2, are used to prepare bisimidinato complexes which can be used in the polymerization of unsaturated compounds.

Patent Agency Ranking