[EN] TETRADENTATE FERROCENE LIGANDS AND THEIR USE<br/>[FR] LIGANDS DE FERROCENE TETRADENTATE ET UTILISATION
申请人:SOLVIAS AG
公开号:WO2006003195A1
公开(公告)日:2006-01-12
Compounds of the formula (I) in the form of racemates, mixtures of diastereomers or pure diastereomers, where RO and Roo are each, independently of one another, hydrogen, C1-C20-alkyl, C3-C8-cycloalkyl, C6-C14-aryl or C3-C12-heteroaryl having heteroatoms selected from the group consisting of O, S and N, which are unsubstituted or substituted by C1-C6-alkyl, C1-C6-alkoxy, C5-C8-cycloalkyl, C5-C8-cycloalkoxy, phenyl, C1-C6-alkylphenyl, C1-C6-alkoxyphenyl, C3-C8-heteroaryl, F or trifluoromethyl; the radicals R1 are each, independently of one another, a hydrogen atom, a halogen atom or a substituent bound to the cyclopentadienyl rings via a C atom, S atom, Si atom, a P(O) or P(S) group; R2 and R02 are each, independently of one another, a hydrogen atom, C1-C20-alkyl, C3-C8-cycloalkyl, C6-C14-aryl or C3-C12-heteroaryl having heteroatoms selected from the group consisting of O, S and N, which are unsubstituted or substituted by C1-C6-alkyl, C1-C6-alkoxy, C5-C8-cycloalkyl, C5-C8-cycloalkoxy, phenyl, C1-C6-alkylphenyl, C1-C6-alkoxyphenyl, C3-C8-heteroaryl, F or trifluoromethyl; the two indices m are each, independently of one another, 1, 2 or 3; n is 0 or 1; X1 is a secondary phosphine group or a cyclic phosphonite group, and X2 and X3 are each, independently of one another, a secondary phosphine group. The compounds of the formula (I) are valuable ligands for enantioselective catalysts for the hydrogenation of prochiral, unsaturated compounds.
式(I)的化合物以拉克酸酯、不对映异构体混合物或纯不对映异构体的形式存在,其中RO和Roo分别独立地为氢、C1-C20-烷基、C3-C8环烷基、C6-C14芳基或含有O、S和N的杂环芳基,这些基团未被取代或被C1-C6烷基、C1-C6烷氧基、C5-C8环烷基、C5-C8环烷氧基、苯基、C1-C6烷基苯基、C1-C6烷氧基苯基、C3-C8杂环芳基、F或三氟甲基取代;基团R1分别独立地为氢原子、卤素原子或通过碳原子、硫原子、硅原子、P(O)或P(S)基团与环戊二烯环上的取代基结合;R2和R02分别独立地为氢原子、C1-C20烷基、C3-C8环烷基、C6-C14芳基或含有O、S和N的杂环芳基,这些基团未被取代或被C1-C6烷基、C1-C6烷氧基、C5-C8环烷基、C5-C8环烷氧基、苯基、C1-C6烷基苯基、C1-C6烷氧基苯基、C3-C8杂环芳基、F或三氟甲基取代;两个指数m分别独立地为1、2或3;n为0或1;X1为次磷酸酯基团或环磷酸酯基团,X2和X3分别独立地为次磷酸酯基团。式(I)的化合物是用于对手性选择性催化剂的有价值的配体,用于对非手性不饱和化合物进行氢化。