Application of 224311-51-7. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 224311-51-7, Name is 2-(Di-tert-Butylphosphino)biphenyl. In a document type is Article, introducing its new discovery.
Palladium nanoparticles-polypyrrole composite as an efficient catalyst for cyanation of aryl halides
New palladium-polypyrrole (Pd/PPy) nanocomposites have been studied in cyanation of aryl halides with K4Fe(CN)6 and showed high catalytic efficiency. Aryl iodides, bromides, and chlorides are active. The reaction can be performed both in organic solvents and in water; in the latter case, the catalyst was immobilized on graphite support. The cyanation of inactivated aryl chlorides is of special importance as only a few publications dealing with efficient cyanation of aryl chlorides are available, in which expensive and poisonous phosphine ligands and non-aqueous solvents are used. The influence of the morphology of the catalyst on its efficiency in cyanation was investigated, and it was revealed that PPy spheres of about 30 nm in diameter with palladium nanoparticles of 1.2 nm in size are more efficient than bigger polymer ones (about 60 nm in diameter). Palladium content in polypyrrole spheres does not influence the yield of nitriles.
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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