BUTYL-BRIDGED DIPHOSPHINE LIGANDS FOR ALKOXYCARBONYLATION

• Main Authors: DYBALLA, Katrin Marie, BELLER, Matthias, FRANKE, Robert, HESS, Dieter, GEILEN, Frank, Fridag, Dirk, DONG, Kaiwu, FANG, Xiangjie, NEUMANN, Helfried, JACKSTELL, Ralf
• Format: Patent
• Language: English
• Published: 02.11.2023
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to compounds of formula (I)whereR1, R2, R3, R4 are each independently selected from -(C1-C12)-alkyl, -(C3-C12)-cycloalkyl, -(C3-C12)-heterocycloalkyl, -(C6-C20)-aryl, -(C3-C20)-heteroaryl;at least one of the R1, R2, R3, R4 radicals is a -(C3-C20)-heteroaryl radical;andR1, R2, R3, R4, if they are -(C1-C12)-alkyl, -(C3-C12)-cycloalkyl, -(C3-C12)-heterocycloalkyl, -(C6-C20)-aryl or -(C3-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;and to the use thereof as ligands in alkoxycarbonylation.