Search Results - "Dötz, Karl Heinz"

Fischer Carbene Complexes in Organic Synthesis: Metal-Assisted and Metal-Templated Reactions by Dötz, Karl Heinz, Stendel, Joachim

“…A study of organic chemical reactions using Fischer carbene complexes and metals is presented. The metal carbenes synthesized are novel materials with unique…”
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Visual Chiral Recognition through Enantioselective Metallogel Collapsing: Synthesis, Characterization, and Application of Platinum-Steroid Low-Molecular-Mass Gelators by Tu, Tao, Fang, Weiwei, Bao, Xiaoling, Li, Xinbao, Dötz, Karl Heinz

“…Seeing is believing: The visual chiral recognition of (R)‐ and (S)‐binap has been realized through an enantioselective breakdown of metallogels prepared from…”
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An Air-Stable Organometallic Low-Molecular-Mass Gelator: Synthesis, Aggregation, and Catalytic Application of a Palladium Pincer Complex by Tu, Tao, Assenmacher, Wilfried, Peterlik, Herwig, Weisbarth, Ralf, Nieger, Martin, Dötz, Karl Heinz

“…An efficient organometallic gelator can gel a variety of organic solvents even in concentrations as low as 0.2 wt %. π Stacking of the heteroarene moieties,…”
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Chromium Complexes Containing Polycyclic Condensed Aromatic Ligands: Mono- and Bidirectional Synthesis from Chromium-Carbenes, Molecular Structures, and Rearrangement Reactions by Hegele, Peter, Schnakenburg, Gregor, Daniels, Jörg, Dötz, Karl Heinz

“…Chromium–pyrenylcarbenes accessible from halopyrene precursors undergo benzannulation upon gentle warming with 3‐hexyne to give hydroquinoid…”
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Chromium-Templated Benzannulation of (η5-Cyclohexadienyl)Mn(CO)3-Methoxy-Cr(CO)5 Carbenes by Dubarle-Offner, Julien, Rose-Munch, Françoise, Dötz, Karl-Heinz, Rose, Eric, Cuvier, Anne Sophie, Panossian, Armen

“…Pentacarbonyl{methoxy-[1-(η5-4-methoxy-6-phenylcyclohexadienyl)tricarbonylmanganese]carbene}chromium (5) accessible from…”
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Hydroquinoid Chromium Complexes Bearing an Acyclic Conjugated Bridge: Chromium-Templated Synthesis, Molecular Structure, and Haptotropic Metal Migration by Hegele, Peter, Santhamma, Bindu, Schnakenburg, Gregor, Fröhlich, Roland, Kataeva, Olga, Nieger, Martin, Kotsis, Konstantinos, Neese, Frank, Dötz, Karl Heinz

“…The naphthohydroquinoid tricarbonyl chromium complexes 3 and 6, bearing a styryl or phenylazo moiety, have been synthesized and studied for the haptotropic…”
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Heterobimetallic Cr−Mn Complexes of Fused Arenes: Chromium-Templated Benzannulation of a Cymanthrene-Type Metal Carbene and Haptotropic Metal Migration along a Dibenzo[c,e]indene Platform by Dubarle Offner, Julien, Fröhlich, Roland, Kataeva, Olga, Rose-Munch, Françoise, Rose, Eric, Dötz, Karl Heinz

“…The chromium-templated benzannulation of the chromium cymanthrene-type carbene 3 with 3-hexyne affords the heterobimetallic chromium−manganese hydroquinoid…”
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A Novel Pyridine-Bridged Bis-benzimidazolylidene Pincer Palladium Complex: Synthesis and Catalytic Properties by Tu, Tao, Malineni, Jagadeesh, Dötz, Karl Heinz

“…A novel pyridine‐bridged bis‐benzimidazolylidene CNC pincer complex 1 was synthesized from cheap, commercially available precursors under microwave assistance…”
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Efficient Air‐Stable Organometallic Low‐Molecular‐Mass Gelators for Ionic Liquids: Synthesis, Aggregation and Application of Pyridine‐Bridged Bis(benzimidazolylidene)–Palladium Complexes by Tu, Tao, Bao, Xiaoling, Assenmacher, Wilfried, Peterlik, Herwig, Daniels, Jörg, Dötz, Karl Heinz

“…Beyond catalysis: Novel pincer‐type pyridine‐bridged bis(benzimidazolylidene)–palladium complexes have been synthesised and shown to efficiently gelate a…”
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Pyridine-Bridged Benzimidazolium Salts: Synthesis, Aggregation, and Application as Phase-Transfer Catalysts by Tu, Tao, Assenmacher, Wilfried, Peterlik, Herwig, Schnakenburg, Gregor, Dötz, Karl Heinz

“…Simply structured benzimidazolium salts efficiently gelate a variety of polar organic solvents. π‐Stacking, hydrogen bonding, and van der Waals interactions…”
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Visual Chiral Recognition through Enantioselective Metallogel Collapsing: Synthesis, Characterization, and Application of Platinum-Steroid Low-Molecular-Mass Gelators by Tu, Tao, Fang, Weiwei, Bao, Xiaoling, Li, Xinbao, Dötz, Karl Heinz

“…Sehen um zu glauben: Die optische chirale Erkennung von (R)‐ und (S)‐Binap gelang mithilfe des enantioselektiven Kollabierens von Metallogelen, die mit…”
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A Lutidine‐Bridged Bis‐Perimidinium Salt: Synthesis and Application as a Precursor in Palladium‐Catalyzed Cross‐Coupling Reactions by Tu, Tao, Malineni, Jagadeesh, Bao, Xiaoling, Dötz, Karl Heinz

“…A novel lutidine‐bridged bis‐perimidinium dibromide 3 was synthesized in quantitative yield from cheap commercial starting materials. The bisylidene prepared…”
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Synthesis of defined endocrine-disrupting nonylphenol isomers for biological and environmental studies by Boehme, Roswitha M., Andries, Thomas, Dötz, Karl Heinz, Thiele, Bjoern, Guenther, Klaus

“…Nonylphenols are very important environmentally relevant substances in the focus of the world-wide endocrine disrupter research for over 25 years. Thus, they…”
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Heterobimetallic Dibenzoindenyl (Cr(CO)3–Re(CO)3) Complexes via Chromium-Templated [3 + 2 + 1]Benzannulation: Synthesis and Molecular Structures by Offner, Julien Dubarle, Schnakenburg, Gregor, Rose-Munch, Françoise, Rose, Eric, Dötz, Karl Heinz

“…Heterobimetallic (di)benzoindenyl Re–Cr complexes have been prepared by a sequence starting from (8-bromobenzo[e]-indenyl)potassium. Reaction with…”
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Symmetric and Non-Symmetric Dinuclear Alkenyl-Bridged Carbene Complexes of Chromium and Tungsten by Ulrich, Karine, Guerchais, Véronique, Dötz, Karl-Heinz, Toupet, Loic, Le Bozec, Hubert

“…Treatment of (CO)5W=C(NMe2)CH=CH−Ar−(OH)(H)C≡CH (1a−b) [a: −Ar− =1,4‐C6H4−; b: −Ar− = 2,5‐C4H2S−] with W(CO)5(THF) in methanol yields the nonsymmetrical…”
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Dibenzo[f,h]quinoline Cr(CO)3 Complexes: Synthesis by Chromium-Templated Benzannulation, Cyclomanganation, and Haptotropic Chromium Migration by Dubarle Offner, Julien, Schnakenburg, Gregor, Rose-Munch, Françoise, Rose, Eric, Dötz, Karl Heinz

“…Methoxy(benzo[h]quinolinyl)carbene chromium 2, accessible from benzo[h]quinoline in a two-step protocol, undergoes a chromium-templated benzannulation by…”
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Novel Organometallic Gelators with Enhanced Amphiphilic Character: Structure−Property Correlations, Principles for Design, and Diversity of Gelation by Gansäuer, Andreas, Winkler, Iris, Klawonn, Thorsten, Nolte, Roeland J. M, Feiters, Martin C, Börner, Hans G, Hentschel, Jens, Dötz, Karl Heinz

“…A series of new titanocene complexes was synthesized and investigated toward their gelation abilities. The first structure−property correlations for…”
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Enantioselective Total Synthesis of (−)-Curcuquinone via Regioselective Chromium-Mediated Benzannulation by Minatti, Ana, Dötz, Karl Heinz

“…A short and efficient, high-yielding enantioselective total synthesis of the marine natural product (−)-curcuquinone 1 is reported involving a regioselective…”
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P-Coligand Tuning of the Haptotropic Metal Migration in Phenanthrene Chromium Complexes by Joistgen, Oliver, Pfletschinger, Anja, Ciupka, Jan, Dolg, Michael, Nieger, Martin, Schnakenburg, Gregor, Fröhlich, Roland, Kataeva, Olga, Dötz, Karl Heinz

“…The hydroquinoid phenanthrene Cr(CO)3 complex 1, directly accessible from the benzannulation of pentacarbonyl[(methoxy)-1-naphthylcarbene]chromium with…”
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Tunable haptotropic metal migration in fused arenes: towards organometallic switches by Dötz, Karl Heinz, Jahr, Holger C.

“…Tricarbonyl chromium complexes of naphthalene derivatives are synthesized by chromium‐templated [3 + 2 + 1]‐benzannulation and subjected to thermally induced…”
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