New chiral phosphole ligands: their coordination behaviour and application in palladium-catalysed asymmetric allylic substitution

Autor:	Frédéric Dallemer, Jean-Claude Daran, Maryse Gouygou, Gilbert G. A. Balavoine, Jérôme Hydrio
Rok vydání:	2002
Předmět:	Allylic rearrangement Denticity Stereochemistry Organic Chemistry Phosphole chemistry.chemical_element Alkylation Medicinal chemistry Catalysis Inorganic Chemistry chemistry.chemical_compound chemistry Transition metal Physical and Theoretical Chemistry Platinum Palladium
Zdroj:	Tetrahedron: Asymmetry. 13:1097-1102
ISSN:	0957-4166
Popis:	New chiral 1-pyrrolidinophosphole ligands have been synthesised. These phospholes behave as monodentate ligands towards transition metal centres giving mononuclear disubstituted phosphole complexes of the type [M(phosphole) 2 Cl 2 ] with palladium(II) and platinum(II) precursors. In the palladium-catalysed asymmetric allylic substitution of 1,3-diphenyl-2-enylacetate with the anion of dimethylmalonate, the palladium and platinum complexes of these ligands proved to be efficient catalysts for the alkylation reaction, but provided only moderate enantioselectivities.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::75b740badafd6aed7fb6be12d73eaca5 https://doi.org/10.1016/s0957-4166(02)00256-2 Zobrazit plný text záznamu Full Text from ScienceDirect