Application of 161265-03-8. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 161265-03-8, Name is (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine). In a document type is Patent, introducing its new discovery.
HYDROGENATION OF ESTERS WITH RU/BIDENTATE LIGANDS COMPLEXES
The present invention relates to processes for the reduction by hydrogenation, using molecular H2, of a substrate containing one or two esters, or lactones, functional groups into the corresponding alcohol, or diol, said process is carried out in the presence of a base and at least one catalyst or pre-catalyst in the form of a ruthenium complex wherein the ruthenium is coordinated by a diphosphine bidentate ligand (PP ligand) and a diamino bidentate ligand (NN ligand) comprising at least one substituted alpha-carbon and one primary amine as one of the coordinating atoms.
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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