Related Products of 1608-26-0. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 1608-26-0, Name is Tris(dimethylamino)phosphine
. In a document type is Article, introducing its new discovery.
The new monodentate phosphoramidites 8a-g and bidentate phospholanes 13a-e are prepared in an ex-chiral-pool synthesis from D-mannitol. Chiral diols 7a-g, obtained via nucleophilic ring opening of bis(epoxides) 6a-b, are the key intermediates for the production of both classes of ligands. Treatment of 8a-g or 13a-e with [PdCl2(COD)] or [Rh(COD)2][-SO3CF3] yield the corresponding Pd (10a, 10f, 15a) and Rh compounds (9a-g and 14a-e), respectively. The C2 symmetry of the complexes in the solid state is demonstrated by X-ray structure investigations performed on 10a, 10f and 15a. Surprisingly high enantioselectivities in the asymmetric hydrogenation of itaconic acid (94% ee) and a-acetamidocinnamic acid (89% ee) are observed on using the Rh complex 9g bearing two monodentate phosphoramidite ligands. Although the chelating bis(phospholanes) described herein are more effective, the adjustable synthesis of the monodentate phosphoramidites may permit the optimization of asymmetric catalytic reactions. Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002.
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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