Synthetic Route of 19845-69-3, Chemistry can be defined as the study of matter and the changes it undergoes. You’ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology.19845-69-3, Name is 1,6-Bis(diphenylphosphino)hexane, molecular formula is C30H32P2. In a patent, introducing its new discovery.
Disclosed is a process for the preparation of an aliphatic carbonyl derivative compound having a normal:iso ratio of at least 3, and preferably 4, selected from aliphatic carboxylic acids, alkylesters of aliphatic carboxylic acids and anhydrides of aliphatic carboxylic acids by the hydrocarboxylation of terminal linear olefins in the presence of a catalyst system comprising (1) a rhodium containing compound, (2) a halide promoter selected from iodine, bromine and compounds thereof and (3) a trisubstituted organic compound of a group-15 element, preferably a phosphine or arsine. This process constitutes an improvement over known processes since it provides a one-step, lower pressure, higher reaction rate method of producing carboxylic acid derivatives having an increased normal:iso ratio in the absence of potentially hazardous chlorinated hydrocarbons and aromatic hydrocarbons.
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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate