Zobrazeno 1 - 10
of 181
pro vyhledávání: '"Pierre Mangeney"'
Publikováno v:
Synthesis: Journal of Synthetic Organic Chemistry
Synthesis: Journal of Synthetic Organic Chemistry, 2016, 49 (3), pp.526-531. ⟨10.1055/s-0036-1588613⟩
SYNTHESIS
SYNTHESIS, Georg Thieme Verlag, 2016, 49 (3), pp.526-531. ⟨10.1055/s-0036-1588613⟩
Synthesis: Journal of Synthetic Organic Chemistry, 2016, 49 (3), pp.526-531. ⟨10.1055/s-0036-1588613⟩
SYNTHESIS
SYNTHESIS, Georg Thieme Verlag, 2016, 49 (3), pp.526-531. ⟨10.1055/s-0036-1588613⟩
International audience; This personal account summarizes our recent work regarding the addition of allenyl cuprates to aldehydes. An intertwined experimental and theoretical study enables highlighting of the crucial role of Li+ as a structuring agent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5923c1b7d161addb196d4d1d805d3467
https://hal.science/hal-01468753
https://hal.science/hal-01468753
Publikováno v:
Pure and Applied Chemistry. 82:1393-1402
Bis-N-heterocyclic carbenes Pd0 complexes, Pd0(NHC)2, are efficient catalysts in Heck reactions performed with aryl bromides or chlorides. The Pd0(NHC)2 that are not stable are generated in situ from PdII precursors PdY2(NHC)2 (Y = halides) after a c
Publikováno v:
European Journal of Inorganic Chemistry. 2009:5422-5432
[(NHC)(PR3)PdX2] complexes (NHC = N-heterocyclic carbene) are active precatalysts in the palladium-catalyzed allylation of carbonyl compounds with allylic acetates and diethylzinc. A comparative study examining the catalytic activity of a series of s
Publikováno v:
European Journal of Inorganic Chemistry. 2009:1796-1805
The allylic amination reaction catalyzed by [(NHC)Pd(allyl)Cl] complexes has been studied, and the presence of PPh3 found to be essential for the catalytic system to be active.[(1-Mesityl-3-methylimidazol-2-ylidene)Pd(η3-C3H5)Cl] has been used to op
Publikováno v:
Journal of Organometallic Chemistry. 692:5754-5762
A dramatic improvement of the catalytic activity was observed when a phosphine was added in allylic alkylation reactions catalyzed by (NHC)Pd(η3-C3H5)Cl complexes. Consequently, several palladium complexes, generated in situ from different NHC–sil
Publikováno v:
Tetrahedron: Asymmetry. 18:229-236
Several silver(I) complexes with chiral amino-N-heterocyclic carbene (NHC) ligands, which are not diastereomerically pure, were prepared and used to generate in situ chelating NHC–amino palladium(II) complexes. The potential of these palladium(II)
Publikováno v:
Journal of Organometallic Chemistry. 691:3498-3508
A new preparation of chiral imino-imidazolium salts has been developed by condensation of chiral primary amines with 1-(2-oxo-2-phenyl-ethyl)-imidazolium salts in chloroform. This reaction gave the (E)-imino-imidazolium salts with stereoselectivities
Publikováno v:
Organic Letters
Organic Letters, American Chemical Society, 2005, 7 (26), pp.5797-5800. ⟨10.1021/ol0522743⟩
Organic Letters, 2005, 7 (26), pp.5797-5800. ⟨10.1021/ol0522743⟩
Organic Letters, American Chemical Society, 2005, 7 (26), pp.5797-5800. ⟨10.1021/ol0522743⟩
Organic Letters, 2005, 7 (26), pp.5797-5800. ⟨10.1021/ol0522743⟩
International audience; The copper reagent arising from an optically pure propargylic oxazolidinone was found to react regio- and diastereoselectively with aldehydes, leading, in a one-pot procedure, to the anti homopropargylic amino alcohols derivat
Publikováno v:
Journal of Organometallic Chemistry. 678:166-179
A preparation of chiral palladium(II) bis-diaminocarbene complexes was developed from the corresponding silver(I) diaminocarbenes and bis(acetonitrile)dichloropalladium(II). Crystal structure details of trans-diiodo bis[(4R,5R)-1,3-dibenzyl-4,5-di-te
Autor:
Pierre Mangeney, Christophe Pays
Publikováno v:
Tetrahedron Letters. 44:5719-5722
The stereochemistry of reductive and non reductive Heck cyclisations of 4-substituted-1.4-dihydropyridines is reexamined. The both reactions occur mainly via an anti (from the C 4 substituent) 5- exo process without any epimerisation of the C 4 -H.