1.
Full Text
Enantiomerically Pure [M6L12] or [M12L24] Polyhedra from Flexible Bis(Pyridine) Ligands
Angewandte Chemie International Edition, ISSN 1433-7851, 02/2014, Volume 53, Issue 6, pp. 1693 - 1698
Coordination‐driven self‐assembly is one of the most powerful strategies to prepare nanometer‐sized discrete (supra)molecular assemblies. Herein, we report on...
metallosupramolecular chemistry | self‐sorting | CD spectroscopy | DFT calculations | self‐assembly | self-assembly | self-sorting | M2L4 MOLECULAR CAPSULES | COMPLEXES | ENCAPSULATION | SUPRAMOLECULAR CHEMISTRY | CHEMISTRY, MULTIDISCIPLINARY | COORDINATION SPHERES | NANOPARTICLES | DISCRETE | CONSTRUCTION | CAGES | PALLADIUM(II) | Alkaloids | Pyridine | Ligands | Models | Self assembly | Transmission electron microscopy | Dichroism | Polyhedrons | Nanostructure | Rotational | Bonding
metallosupramolecular chemistry | self‐sorting | CD spectroscopy | DFT calculations | self‐assembly | self-assembly | self-sorting | M2L4 MOLECULAR CAPSULES | COMPLEXES | ENCAPSULATION | SUPRAMOLECULAR CHEMISTRY | CHEMISTRY, MULTIDISCIPLINARY | COORDINATION SPHERES | NANOPARTICLES | DISCRETE | CONSTRUCTION | CAGES | PALLADIUM(II) | Alkaloids | Pyridine | Ligands | Models | Self assembly | Transmission electron microscopy | Dichroism | Polyhedrons | Nanostructure | Rotational | Bonding
Journal Article
Chemistry – A European Journal, ISSN 0947-6539, 09/2015, Volume 21, Issue 40, pp. 13878 - 13882
Leaded bronze turned out to be an excellent cathode material for the dehalogenation reaction of cyclopropanes without affecting the strained molecular entity....
electrochemical reduction | leaded bronze | cyclopropanes | sustainable chemistry | dehalogenation | ELECTRON-TRANSFER | DIMETHYLFORMAMIDE | SALEN | OLEFINS | DICHLOROCARBENE | CHEMISTRY, MULTIDISCIPLINARY | Cyclosporine | Corrosion and anti-corrosives | Alloys | Green technology | Cyclopropane compounds | Plasma | Leaded bronzes | Electrode materials | Cyclopropane | Dehalogenation | Cyclosporins | Lead | Derivatives | Functional groups | Substrates | Cathodes | Organic compounds | Sustainability | Electrolytes | Chemical reactions | Conversion
electrochemical reduction | leaded bronze | cyclopropanes | sustainable chemistry | dehalogenation | ELECTRON-TRANSFER | DIMETHYLFORMAMIDE | SALEN | OLEFINS | DICHLOROCARBENE | CHEMISTRY, MULTIDISCIPLINARY | Cyclosporine | Corrosion and anti-corrosives | Alloys | Green technology | Cyclopropane compounds | Plasma | Leaded bronzes | Electrode materials | Cyclopropane | Dehalogenation | Cyclosporins | Lead | Derivatives | Functional groups | Substrates | Cathodes | Organic compounds | Sustainability | Electrolytes | Chemical reactions | Conversion
Journal Article
Angewandte Chemie International Edition, ISSN 1433-7851, 04/2014, Volume 53, Issue 14, pp. 3739 - 3742
An enantiomerically pure BINOL‐based bis(3‐pyridyl) ligand 1 assembles into a homochiral [Pd4(1)8] complex upon coordination to tetravalent PdII ions. The...
metallosupramolecular chemistry | palladium complexes | tetrafluoroborate | template effects | self‐assembly | self-assembly | M2L4 MOLECULAR CAPSULES | ENCAPSULATION | CAGES | PALLADIUM(II) | GUESTS | CHEMISTRY, MULTIDISCIPLINARY | Palladium | Fluorides | Ligands
metallosupramolecular chemistry | palladium complexes | tetrafluoroborate | template effects | self‐assembly | self-assembly | M2L4 MOLECULAR CAPSULES | ENCAPSULATION | CAGES | PALLADIUM(II) | GUESTS | CHEMISTRY, MULTIDISCIPLINARY | Palladium | Fluorides | Ligands
Journal Article
Chemistry – A European Journal, ISSN 0947-6539, 09/2015, Volume 21, Issue 40, p. n/a
Pharmaceutical Electrochemistry. The electrochemical dehalogenation represents a powerful and sustainable tool for the synthesis of pharmaceutically relevant...
electrochemical reduction | leaded bronze | cyclopropanes | sustainable chemistry | dehalogenation | Green technology | Cyclopropane compounds | Leaded bronzes | Plasma | Electrode materials | Cyclopropane | Electrolysis | Dehalogenation | Workers | Electrochemistry | Corrosion products | Contamination | Heavy metals | Cathodes
electrochemical reduction | leaded bronze | cyclopropanes | sustainable chemistry | dehalogenation | Green technology | Cyclopropane compounds | Leaded bronzes | Plasma | Electrode materials | Cyclopropane | Electrolysis | Dehalogenation | Workers | Electrochemistry | Corrosion products | Contamination | Heavy metals | Cathodes
Journal Article
Chemistry – A European Journal, ISSN 0947-6539, 08/2013, Volume 19, Issue 33, pp. 10890 - 10894
A 1,1′‐binaphthyl‐based bis(pyridine) ligand (1) was prepared in racemic and enantiomerically pure form to study the formation of [Pd2(1)4] complexes upon...
BINOL | palladium | self‐sorting | supramolecular chemistry | self‐assembly | self-assembly | self-sorting | ANIONS | RECOGNITION | COMPLEXES | ENCAPSULATION | ALDEHYDES | GUESTS | CHEMISTRY, MULTIDISCIPLINARY | BIDENTATE | MOLECULAR CAPSULES | PALLADIUM(II) | HELICATE | Palladium | Pyridine
BINOL | palladium | self‐sorting | supramolecular chemistry | self‐assembly | self-assembly | self-sorting | ANIONS | RECOGNITION | COMPLEXES | ENCAPSULATION | ALDEHYDES | GUESTS | CHEMISTRY, MULTIDISCIPLINARY | BIDENTATE | MOLECULAR CAPSULES | PALLADIUM(II) | HELICATE | Palladium | Pyridine
Journal Article
Organic Process Research & Development, ISSN 1083-6160, 05/2017, Volume 21, Issue 5, pp. 771 - 778
A highly modular electrochemical flow cell and its application in electroorganic synthesis is reported. This innovative setup facilitates many aspects: an easy...
ELECTROSYNTHESIS | ELECTROLYSIS | CROSS-COUPLING REACTION | REDUCTION | DEHALOGENATION | ELECTROCHEMICAL MICROREACTOR | DIMETHYLFORMAMIDE | CHEMISTRY | CHEMISTRY, ORGANIC | PARALLEL LAMINAR-FLOW | MICROFLOW SYSTEMS | CHEMISTRY, APPLIED
ELECTROSYNTHESIS | ELECTROLYSIS | CROSS-COUPLING REACTION | REDUCTION | DEHALOGENATION | ELECTROCHEMICAL MICROREACTOR | DIMETHYLFORMAMIDE | CHEMISTRY | CHEMISTRY, ORGANIC | PARALLEL LAMINAR-FLOW | MICROFLOW SYSTEMS | CHEMISTRY, APPLIED
Journal Article
Organic Process Research & Development, ISSN 1083-6160, 01/2016, Volume 20, Issue 1, pp. 26 - 32
Electrochemical screening is usually strongly focused on electroanalytical data, while the parameters of organic synthesis are mostly not used as selection...
ELECTROSYNTHESIS | ELECTROLYSIS | AMINATION | MICROTITER PLATE | REDUCTION | DEHALOGENATION | CHEMISTRY, ORGANIC | COMBINATORIAL ELECTROCHEMISTRY | FLUORINATION | CHEMISTRY, APPLIED | DERIVATIVES | PARALLEL
ELECTROSYNTHESIS | ELECTROLYSIS | AMINATION | MICROTITER PLATE | REDUCTION | DEHALOGENATION | CHEMISTRY, ORGANIC | COMBINATORIAL ELECTROCHEMISTRY | FLUORINATION | CHEMISTRY, APPLIED | DERIVATIVES | PARALLEL
Journal Article
Organic Process Research & Development, ISSN 1083-6160, 10/2015, Volume 19, Issue 10, pp. 1428 - 1433
The electrochemical 2-fold dehalogenation of a spirocyclopropane-proline derivative at leaded bronze was scaled-up in a divided batch-type electrolysis cell in...
CHEMISTRY, ORGANIC | CHEMISTRY, APPLIED | REDUCTION | DIMETHYLFORMAMIDE | SALEN
CHEMISTRY, ORGANIC | CHEMISTRY, APPLIED | REDUCTION | DIMETHYLFORMAMIDE | SALEN
Journal Article
Journal of the American Chemical Society, ISSN 0002-7863, 08/2014, Volume 136, Issue 33, pp. 11830 - 11838
A tris(bipyridine) ligand 1 with two BINOL (BINOL = 2,2′-dihydroxy-1,1′-binaphthyl) groups has been prepared in two enantiomerically pure forms. This ligand...
COORDINATION-COMPOUNDS | ENERGY | LIGANDS | TROGERS BASE | ELECTRON-CAPTURE DISSOCIATION | COMPLEXES | BASIS-SETS | STEREOSELECTIVE-SYNTHESIS | 2,2'-BIPYRIDINES | CHIRALITY | CHEMISTRY, MULTIDISCIPLINARY | Oxidation-reduction reaction | Research | Chemical properties | Copper
COORDINATION-COMPOUNDS | ENERGY | LIGANDS | TROGERS BASE | ELECTRON-CAPTURE DISSOCIATION | COMPLEXES | BASIS-SETS | STEREOSELECTIVE-SYNTHESIS | 2,2'-BIPYRIDINES | CHIRALITY | CHEMISTRY, MULTIDISCIPLINARY | Oxidation-reduction reaction | Research | Chemical properties | Copper
Journal Article
Angewandte Chemie International Edition, ISSN 1433-7851, 08/2018, Volume 57, Issue 34, pp. 11055 - 11059
The biosynthesis of thebaine is based on the regioselective, intramolecular, oxidative coupling of (R)‐reticuline. For decades, chemists have sought to mimic...
electrochemistry | thebaine | biomimetic synthesis | alkaloids | morphine | DEPROTONATED ALPHA-AMINONITRILE | PRACTICAL SYNTHESIS | ENANTIOSELECTIVE SYNTHESIS | FORMAL TOTAL-SYNTHESIS | CHEMISTRY, MULTIDISCIPLINARY | MORPHINANDIENONE ALKALOIDS | PHENOL OXIDATION | OPIUM-ALKALOIDS | ELECTROOXIDATIVE CYCLIZATION | MORPHINE ALKALOIDS | HETEROCYCLIC-COMPOUNDS | Electrochemistry | Electrochemical reactions | Morphine | Synthesis | Biomimetics | Organic compounds | Stereoselectivity | Organic chemistry | Oxidants | Aromatic compounds | Oxidizing agents | Chemists | Biosynthesis | Coupling
electrochemistry | thebaine | biomimetic synthesis | alkaloids | morphine | DEPROTONATED ALPHA-AMINONITRILE | PRACTICAL SYNTHESIS | ENANTIOSELECTIVE SYNTHESIS | FORMAL TOTAL-SYNTHESIS | CHEMISTRY, MULTIDISCIPLINARY | MORPHINANDIENONE ALKALOIDS | PHENOL OXIDATION | OPIUM-ALKALOIDS | ELECTROOXIDATIVE CYCLIZATION | MORPHINE ALKALOIDS | HETEROCYCLIC-COMPOUNDS | Electrochemistry | Electrochemical reactions | Morphine | Synthesis | Biomimetics | Organic compounds | Stereoselectivity | Organic chemistry | Oxidants | Aromatic compounds | Oxidizing agents | Chemists | Biosynthesis | Coupling
Journal Article
Analytical Chemistry, ISSN 0003-2700, 02/2017, Volume 89, Issue 3, pp. 1632 - 1641
Femtosecond laser ablation/ionization mass spectrometry (LIMS) has been applied to probe the spatial element composition of three ternary Cu–Sn–Pb model bronze...
DEPTH-PROFILE ANALYSIS | SPACE RESEARCH | CHEMISTRY, ANALYTICAL | BRONZE | POTENTIAL OSCILLATIONS | ELEMENTAL ANALYSIS | RESOLUTION | ABLATION | SIMS | ELECTRODEPOSITION | IONIZATION
DEPTH-PROFILE ANALYSIS | SPACE RESEARCH | CHEMISTRY, ANALYTICAL | BRONZE | POTENTIAL OSCILLATIONS | ELEMENTAL ANALYSIS | RESOLUTION | ABLATION | SIMS | ELECTRODEPOSITION | IONIZATION
Journal Article
Angewandte Chemie International Edition, ISSN 1433-7851, 04/2014, Volume 53, Issue 14, pp. 3739 - 3742
Journal Article
European Journal of Organic Chemistry, ISSN 1434-193X, 01/2014, Volume 2014, Issue 1, pp. 206 - 216
Four BINOL‐based bis(4‐pyridyl) ligands were synthesised in enantiopure and racemic form. These ligands form metallosupramolecular [(dppp)2M2L2] rhombi with...
Atropisomerism | Palladium | Platinum | Supramolecular chemistry | Self‐assembly | Self-assembly | RECOGNITION | MACROCYCLES | COMPLEXES | CHEMISTRY, ORGANIC | BIS(BIPYRIDINE) LIGANDS | SPECTROSCOPY | SYSTEMS | DIPORPHYRINS | COORDINATION POLYMERS | DERIVATIVES | HELICATE | Nuclear magnetic resonance spectroscopy | Pyridine | Enantiomers | Mass spectrometry
Atropisomerism | Palladium | Platinum | Supramolecular chemistry | Self‐assembly | Self-assembly | RECOGNITION | MACROCYCLES | COMPLEXES | CHEMISTRY, ORGANIC | BIS(BIPYRIDINE) LIGANDS | SPECTROSCOPY | SYSTEMS | DIPORPHYRINS | COORDINATION POLYMERS | DERIVATIVES | HELICATE | Nuclear magnetic resonance spectroscopy | Pyridine | Enantiomers | Mass spectrometry
Journal Article
Angewandte Chemie International Edition, ISSN 1433-7851, 08/2012, Volume 51, Issue 32, pp. 8097 - 8100
Replacing the director: A bipyridinyl ligand with an aliphatic side chain determines the regioselectivity of copper‐catalyzed CH oxidation by intramolecular...
ion mobility | oxidation | CH activation | copper | gas phase | C-H activation | MOBILITY-MASS-SPECTROMETRY | DIFFERENT SITES | COMPLEXES | DIOXIDE CATION | CHEMISTRY, MULTIDISCIPLINARY | MOLECULES | DISSOCIATION | GAS-PHASE | REMOTE FUNCTIONALIZATION | METAL-IONS | Linkages | Chains | Esters | Ligands | Activation | Transesterification | Bonding | Mass spectrometry | Aliphatic compounds
ion mobility | oxidation | CH activation | copper | gas phase | C-H activation | MOBILITY-MASS-SPECTROMETRY | DIFFERENT SITES | COMPLEXES | DIOXIDE CATION | CHEMISTRY, MULTIDISCIPLINARY | MOLECULES | DISSOCIATION | GAS-PHASE | REMOTE FUNCTIONALIZATION | METAL-IONS | Linkages | Chains | Esters | Ligands | Activation | Transesterification | Bonding | Mass spectrometry | Aliphatic compounds
Journal Article
Angewandte Chemie, ISSN 0044-8249, 08/2018, Volume 130, Issue 34, pp. 11221 - 11225
Die Biosynthese von Thebain basiert auf der regioselektiven intramolekularen oxidativen Kupplung von (R)‐Reticulin. Seit Jahrzehnten versuchen Chemiker diese...
Biomimetische Synthesen | Elektrochemie | Morphin | Alkaloide | Thebain | Organic chemistry | Aromatic compounds
Biomimetische Synthesen | Elektrochemie | Morphin | Alkaloide | Thebain | Organic chemistry | Aromatic compounds
Journal Article
Chemistry - A European Journal, ISSN 0947-6539, 08/2013, Volume 19, Issue 33, pp. 10890 - 10894
Journal Article
Angewandte Chemie International Edition, ISSN 1433-7851, 08/2018, Volume 57, Issue 34, pp. 11080 - 11080
Enforcement of selectivity through a combination of electrochemistry and substrate design enabled the biomimetic synthesis of the economically important opium...
electrochemistry | thebaine | biomimetic synthesis | alkaloids | morphine
electrochemistry | thebaine | biomimetic synthesis | alkaloids | morphine
Journal Article
Synthesis, ISSN 0039-7881, 01/2010, Volume 2010, Issue 1, pp. 85 - 90
Abstract For a long time, the Suzuki-Miyaura cross-coupling reaction could not be used for the synthesis of 2,2′-bipyridines due to the lack of sufficiently...
paper | 2-pyridylboronic acid esters | Bipyridines | Palladium | Cross-coupling reactions | Suzuki-Miyaura reaction | bipyridines | ASYMMETRIC CATALYSIS | ACIDS | CHEMISTRY, ORGANIC | PYRIDINES | BIPYRIDINE | CAERULOMYCIN-C | LIGANDS | ESTERS | palladium | cross-coupling reactions | CHLORIDE
paper | 2-pyridylboronic acid esters | Bipyridines | Palladium | Cross-coupling reactions | Suzuki-Miyaura reaction | bipyridines | ASYMMETRIC CATALYSIS | ACIDS | CHEMISTRY, ORGANIC | PYRIDINES | BIPYRIDINE | CAERULOMYCIN-C | LIGANDS | ESTERS | palladium | cross-coupling reactions | CHLORIDE
Journal Article
Analytical Chemistry, ISSN 0003-2700, 02/2017, Volume 89, Issue 3, p. 1632
Femtosecond laser ablation/ionization mass spectrometry (LIMS) has been applied to probe the spatial element composition of three ternary Cu-Sn-Pb model...
Analytical chemistry | Organic chemistry | Alloys | Chemical reactions | Trace elements | Chemical synthesis | Mass spectrometry
Analytical chemistry | Organic chemistry | Alloys | Chemical reactions | Trace elements | Chemical synthesis | Mass spectrometry
Journal Article