Reagent-controlled enantioselectivity switch for the asymmetric fluorination of β-ketocarbonyls by chiral primary amine catalysis† †Electronic supplementary information (ESI) available: Experimental details including characterization date, copies of 1H, 13C, and 19F NMR and HPLC traces. See DOI: 10.1039/c6sc03109a Click here for additional data file.

Reagent-controlled enantioselectivity switch for the asymmetric fluorination of β-ketocarbonyls by chiral primary amine catalysis.

A reagent-controlled enantioselectivity switch was uncovered in the asymmetric α-fluorination of β-ketocarbonyls by a chiral primary amine catalyst. By a simple swap of fluorination reagents, both enantiomers of the quaternary fluorination adducts could be obtained with good yields and high enantioselectivity. Mechanistic studies disclosed dual H-bonding and electrostatic stereocontrolling mode...

Enantioselective synthesis of (–)-chloramphenicol via silver-catalysed asymmetric isocyanoacetate aldol reaction† †Electronic supplementary information (ESI) available: Experimental procedures, characterisation data, copies of 1H and 13C NMR spectra, and HPLC traces. See DOI: 10.1039/c5ob02141c Click here for additional data file.

Palladium-catalyzed ligand-promoted site-selective cyanomethylation of unactivated C(sp3)–H bonds with acetonitrile† †Electronic supplementary information (ESI) available: Experimental details including characterization data, copies of 1H, 13C NMR and NOESY spectra. See DOI: 10.1039/c5sc04066c Click here for additional data file.

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Racemic hemiacetals as oxygen-centered pronucleophiles triggering cascade 1,4-addition/Michael reaction through dynamic kinetic resolution under iminium catalysis. Development and mechanistic insights† †Electronic supplementary information (ESI) available: Detailed experimental procedures and characterization of all new compounds, including copies of NMR spectra and HPLC chromatograms traces, computational details and Cartesian coordinates of all stationary points. CCDC 1525188 (4l), 1525189 (6a) and 1525190 (9a). For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c7sc00009j Click here for additional data file. Click here for additional data file.

Department of Organic Chemistry II, Unive P.O. Box 644, 48080 Bilbao, Spain Departamento de Śıntesis y Estructura de Bi y Catálisis Homogénea (ISQCH), Universida Servicio de Resonancia Magnética Nuclear, C (CEQMA), Universidad de Zaragoza, CSIC, † Electronic supplementary information procedures and characterization of all NMR spectra and HPLC chromatogram Cartesian coordinates of all stationary...

Gold(iii)–arene complexes by insertion of olefins into gold–aryl bonds† †Electronic supplementary information (ESI) available: Experimental details (syntheses, analytical data and copies of 1H, 13C and 31P NMR spectra), crystallographic data of 2 and computational details. CCDC 1526613 and 1538015. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c7sc00145b Click here for additional data file. Click here for additional data file.