Application of 564483-18-7. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 564483-18-7, Name is 2-(Dicyclohexylphosphino)-2′,4′,6′-tri-i-propyl-1,1′-biphenyl. In a document type is Article, introducing its new discovery.
An efficient, in situ sequential 1,2-addition of alkyllithium reagents to benzamides followed by alpha-arylation of the resulting alkyl ketones is reported. The use of Pd[P(t-Bu)3]2, as catalyst for the alpha-arylation reaction, allows access to a wide variety of functionalized benzyl ketones in a modular way. The decomposition of the tetrahedral intermediate originated from the 1,2-addition liberates in situ a lithium amide, therefore avoiding the need of an external base for the alpha-arylation. The method affords good overall yields with a variety of alkyl lithium reagents, benzamides, and aryl bromides, bearing a range of functional groups with complete selectivity toward the monoarylated products.
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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