摘要 |
The invention relates to a compound of formula (I) (see formula I) where R1, R2, R3, R4 are each independently selected from -(C1-C12)-alkyl, -(C3-C12)-cycloalkyl, -(C3-C12)-heterocycloalkyl, -(C5-C20)-aryl, -(C3-C20)-heteroaryl; at least one of the R1, R2, R3, R4 radicals is a -(C6-C20)-heteroaryl radical having at least six ring atoms; and R1, R2, R3, R4, if they are -(C1-C12)-alkyl, -(C3-C12)-cycloalkyl, -(C3-C12)-heterocycloalkyl, -(C6-C20)-aryl, -(C3-C20)-heteroaryl or -(C6-C20)-heteroaryl, may each independently be substituted by one or more substituents selected from -(C1-C12)-alkyl, -(C3-C12)-cycloalkyl, -(C3-C12)-heterocycloalkyl, -O-(C1-C12)-alkyl, -O-(C1-C12)-alkyl-(C6-C20)-aryl, -O-(C3-C12)-cycloalkyl, -S-(C1-C12)-alkyl, -S-(C3-C12)-cycloalkyl, -COO-(C1-C12)-alkyl, -COO-(C3-C12)-cycloalkyl, -CONH-(C1-C12)-alkyl, -CONH-(C3-C12)-cycloalkyl, -CO-(C1-C12)-alkyl, -CO-(C3-C12)-cycloalkyl, -N-[(C1-C12)-alkyl]2, -(C6-C20)-aryl, -(C6-C20)-aryl-(C1-C12)-alkyl, -(C6-C20)-aryl-O-(C1-C12)-alkyl, -(C3-C20)-heteroaryl, -(C3-C20)-heteroaryl-(C1-C12)-alkyl, -(C3-C20)-heteroaryl-O-(C1-C12)-alkyl, -COOH, -OH, -SO3H, -NH2, halogen. The invention further relates to precursors for preparation of the compound according to the invention, to Pd complexes comprising the compound according to the invention and to the use thereof in alkoxycarbonylation. |
申请人 |
EVONIK DEGUSSA GMBH |
发明人 |
DONG, KAIWU;NEUMANN, HELFRIED;JACKSTELL, RALF;BELLER, MATTHIAS;FRANKE, ROBERT;HESS, DIETER;DYBALLA, KATRIN MARIE;FRIDAG, DIRK;GEILEN, FRANK |