Reference of 1608-26-0, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 1608-26-0, P[N(CH3)2]3. A document type is Article, introducing its new discovery.
Asymmetric IrI-catalysed allylic alkylation of monosubstituted allylic acetates with phosphorus amidites as ligands
Monodentate phosphorus amidites derived from 2,2?-binaphthol and a variety of chiral amines were employed as ligands in IrI-catalysed allylic alkylations of unsymmetrically substituted allylic acetates. The enantio- and regioselectivities of these reactions were investigated. Phosphorus amidites of bulky secondary chiral amines induced enantioselectivities of up to 94% ee in reactions of linear substrates. Phosphorus amidites derived from chiral primary amines, which have not been previously employed in asymmetric catalysis, furnished improved regioselectivities. The use of LiCl as additive led to improved regio- and enantioselectivities. ( Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003).
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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