申请人:Hoechst Aktiengesellschaft
公开号:US05789623A1
公开(公告)日:1998-08-04
The present invention relates to a hydroxybiarylphosphines of the formula ##STR1## in which Ar-Ar is biphenyl, 1-phenyinaphthyl or 1,1'-binaphthyl, R.sup.1 and R.sup.2 are identical or different and are F or alkoxy having in each case 1 to 8 carbon atoms or are substituted or unsubstituted aryl, a and b are identical or different and are an integer from 0 to 4, in which R.sup.3 and R.sup.4 are identical or different and are alkyl having 1 to 8 carbon atoms, cycloalkyl having 4 to 10 carbon atoms, alkaryl having 7 to 9 carbon atoms, Ar.sup.3 --(R.sup.5).sub.n, in which A.sup.3 is an aryl radical having 6 to 10 carbon atoms, R.sup.5 is CF.sub.3, dialkylamino having a total of 2 to 8 carbon atoms or --CH.sub.2 N(alkyl).sub.2 having 1 to 3 carbon atoms per alkyl and n is an integer from 0 to 5, or --R.sup.3 --R.sup.4 -- forms a chain of 3 to 5 members to which one or two aromatic rings or ring systems having 6 to 10 carbon atoms are optionally fused together with the P atom, forms a ring having 4 to 6 members, with the proviso that Ar.sup.3 --(R.sup.5).sub.n is not phenyl or a phenyl substituted by halogen, alkyl or alkoxy each having 1 to 8 carbon atoms, if Ar-Ar is bipohenyl or 1,1'-binaphthyl and a.dbd.b.dbd.0 and R.sup.3 and R.sup.4 are identical in each case.
本发明涉及一种具有以下结构的羟基联苯膦化合物##STR1##其中Ar-Ar为联苯、1-苯基萘基或1,1'-联萘基,R.sup.1和R.sup.2相同或不同,为F或烷氧,每种情况下具有1至8个碳原子,或为取代或未取代芳基,a和b相同或不同,为0至4的整数,其中R.sup.3和R.sup.4相同或不同,为具有1至8个碳原子的烷基,具有4至10个碳原子的环烷基,具有7至9个碳原子的烷基芳基,Ar.sup.3--(R.sup.5).sub.n,其中A.sup.3为具有6至10个碳原子的芳基基团,R.sup.5为CF.sub.3,具有总共2至8个碳原子的二烷基氨基或--CH.sub.2N(烷基).sub.2,每个烷基具有1至3个碳原子,n为0至5的整数,或--R.sup.3--R.sup.4--形成具有3至5个成员的链,其中一个或两个具有6至10个碳原子的芳香环或环系统可以选择地与P原子融合在一起,形成具有4至6个成员的环,条件是Ar.sup.3--(R.sup.5).sub.n不是苯基或被卤素、烷基或每个具有1至8个碳原子的烷氧基取代的苯基,如果Ar-Ar为联苯或1,1'-联萘基且a=dbd.b=dbd.0且R.sup.3和R.sup.4在每种情况下相同。