Search results for "Malonate"
showing 10 items of 52 documents
CCDC 294202: Experimental Crystal Structure Determination
2012
Related Article: F.S.Delgado, C.A.Jimenez, P.Lorenzo-Luis, J.Pasan, O.Fabelo, L.Canadillas-Delgado, F.Lloret, M.Julve, C.Ruiz-Perez|2012|Cryst.Growth Des.|12|599|doi:10.1021/cg200675u
CCDC 886172: Experimental Crystal Structure Determination
2013
Related Article: H.Sanchez, J.Server-Carrio, E.Escriva, L.Soto, J.Garcia-Lozano, A.Sancho, C.R.de Arellano|2013|Polyhedron|50|383|doi:10.1016/j.poly.2012.11.024
CCDC 654607: Experimental Crystal Structure Determination
2008
Related Article: H.Nunez, J.Server-Carrio, E.Escriva, L.Soto, J.Garcia-Lozano, A.Sancho, B.Verdejo, E.Garcia-Espana|2008|Polyhedron|27|633|doi:10.1016/j.poly.2007.10.026
CCDC 654606: Experimental Crystal Structure Determination
2008
Related Article: H.Nunez, J.Server-Carrio, E.Escriva, L.Soto, J.Garcia-Lozano, A.Sancho, B.Verdejo, E.Garcia-Espana|2008|Polyhedron|27|633|doi:10.1016/j.poly.2007.10.026
CCDC 1056977: Experimental Crystal Structure Determination
2015
Related Article: Kristin Lippur , Sandra Kaabel , Ivar Järving , Kari Rissanen , and Tõnis Kanger|2015|J.Org.Chem.|80|6336|doi:10.1021/acs.joc.5b00769
CCDC 886171: Experimental Crystal Structure Determination
2013
Related Article: H.Sanchez, J.Server-Carrio, E.Escriva, L.Soto, J.Garcia-Lozano, A.Sancho, C.R.de Arellano|2013|Polyhedron|50|383|doi:10.1016/j.poly.2012.11.024
Synthesis and application of new iminopyridine ligands in the enantioselective palladium-catalyzed allylic alkylation
2014
A variety of iminopyridines were obtained by condensation of chiral amines with pyridine-2-carboxaldehyde and quinoline-8-carbaldehyde, or of aminoalkylpyridine derivatives with chiral ketones. These ligands were assessed in the enantioselective palladium catalyzed allylic substitution of 1,3-diphenylprop-2-enyl acetate with dimethyl malonate affording the product dimethyl 1,3-diphenylprop-2-enylmalonate in good yields and moderate enantioselectivities (up to 62% ee). Catalytic activity and enantioselectivity were found to be highly dependent upon the steric properties of the ligands. The best enantioselectivity (62% ee) was obtained by an iminopyridine based on a camphane skeleton. © 2014 …
Asymmetric Conjugate Addition of Malonate Esters to α,β-UnsaturatedN-Sulfonyl Imines: An Expeditious Route to Chiral δ-Aminoesters and Piperidones
2013
The asymmetric conjugate addition of malonate esters to α,β-unsaturated N-sulfonyl imines is catalyzed by PyBOX/La(OTf)3 complexes in the presence of 4 Å MS. The reaction gives the corresponding E enamines bearing a stereogenic center at the allylic position with good yields and enantiomeric ratios up to 97:3. This reaction provides a synthetic entry to chiral δ-aminoesters and piperidones.
ChemInform Abstract: Asymmetric Conjugate Addition of Malonate Esters to α,β-Unsaturated N-Sulfonyl Imines: An Expeditious Route to Chiral δ-Aminoest…
2014
The asymmetric conjugate addition of malonate esters to α,β-unsaturated N-sulfonyl imines is catalyzed by PyBOX/La(OTf)3 complexes in the presence of 4 A MS. The reaction gives the corresponding E enamines bearing a stereogenic center at the allylic position with good yields and enantiomeric ratios up to 97:3. This reaction provides a synthetic entry to chiral δ-aminoesters and piperidones.
Copper-catalysed enantioselective Michael addition of malonic esters to β-trifluoromethyl-α,β-unsaturated imines
2017
[EN] Copper triflate-BOX complexes catalyse the enantioselective conjugate addition of methyl malonate to beta-trifluoromethyl-alpha,beta-unsaturated imines to give the corresponding enamines bearing a trifluoromethylated stereogenic centre with good yields, and diastereo- and enantioselectivities. The usefulness of the method has been shown with the synthesis of optically active beta-trifluoromethyl delta-amino esters and optically active trifluoromethyl piperidones.