Search Results - "Quéguiner, Guy"

Recent advances in direct C-H arylation: Methodology, selectivity and mechanism in oxazole series by Verrier, Cécile, Lassalas, Pierrik, Théveau, Laure, Quéguiner, Guy, Trécourt, François, Marsais, Francis, Hoarau, Christophe

“…Catalytic direct (hetero)arylation of (hetero)arenes is an attractive alternative to traditional Kumada, Stille, Negishi and Suzuki-Miyaura cross-coupling…”
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Deprotonative Magnesation and Cadmation of [1,2,3]Triazolo[1,5-a]pyridines by Bentabed-Ababsa, Ghenia, Blanco, Fernando, Derdour, Aïcha, Mongin, Florence, Trécourt, François, Quéguiner, Guy, Ballesteros, Rafael, Abarca, Belén

“…[1,2,3]Triazolo[1,5-a]pyridine and 3-substituted derivatives were regioselectively metalated at the 7 position using either Bu3MgLi or (TMP)3CdLi, the former…”
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Synthesis and reactivity of lithium tri(quinolinyl)magnesates by Dumouchel, Sylvain, Mongin, Florence, Trécourt, François, Quéguiner, Guy

“…2-, 3- and 4-Bromoquinolines were converted to the corresponding lithium tri(quinolinyl)magnesates at −10°C when exposed to Bu 3MgLi in THF. The resulting…”
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New Syntheses of Substituted Pyridines via Bromine–Magnesium Exchange by Trécourt, François, Breton, Gilles, Bonnet, Véronique, Mongin, Florence, Marsais, Francis, Quéguiner, Guy

“…Bromine–magnesium exchange using iPrMgCl in THF at room temperature on 2-, 3- and 4-bromopyridines allowed the synthesis of various functionalized pyridines…”
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Syntheses of substituted pyridines, quinolines and diazines via palladium-catalyzed cross-coupling of aryl Grignard reagents by Bonnet, Véronique, Mongin, Florence, Trécourt, François, Quéguiner, Guy, Knochel, Paul

“…The palladium-catalyzed cross-coupling reactions between arylmagnesium halides (phenylmagnesium chloride, mesitylmagnesium bromide,…”
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Deprotonation of chloropyridines using lithium magnesates by Awad, Haçan, Mongin, Florence, Trécourt, François, Quéguiner, Guy, Marsais, Francis

“…Chloropyridines are deprotonated using lithium magnesates. 4-Chloropyridine was deprotonated on treatment with 1/3 equiv of the highly coordinated magnesate Bu…”
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First cross-coupling reactions of arylmagnesates: a convenient access to heteroarylquinolines by Dumouchel, Sylvain, Mongin, Florence, Trécourt, François, Quéguiner, Guy

“…2-, 3- and 4-Bromoquinolines were converted to the corresponding lithium tri(quinolyl)magnesates at −10°C on treatment with Bu 3MgLi in THF. The resulting…”
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New Polyfunctional Magnesium Reagents for Organic Synthesis by Rottländer, Mario, Boymond, Laure, Bérillon, Laurent, Leprêtre, Anne, Varchi, Greta, Avolio, Salvatore, Laaziri, Hamid, Quéguiner, Guy, Ricci, Alfredo, Cahiez, Gérard, Knochel, Paul

“…The iodine‐magnesium exchange reaction allows the preparation of polyfunctional aryl, heteroaryl, or alkenyl magnesium reagents at low temperature. These…”
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Chiral ditopic receptors. Application to palladium-catalyzed allylic alkylation by Bourguignon, Jean, Bremberg, Ulf, Dupas, Georges, Hallman, Kristina, Hagberg, Lars, Hortala, Laurent, Levacher, Vincent, Lutsenko, Serghey, Macedo, Emmanuel, Moberg, Christina, Quéguiner, Guy, Rahm, Fredrik

“…Chiral pyridinooxazoline, quinolinooxazoline, bis(oxazolino)pyridine (pybox), and bisoxazoline (box) derivatives containing crown ether residues were prepared…”
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Diastereoselective Protonation of Lactam Enolates Derived from (R)-Phenylglycinol. A Novel Asymmetric Route to 4-Phenyl-1,2,3,4-tetrahydroisoquinolines by Philippe, Nicolas, Levacher, Vincent, Dupas, Georges, Quéguiner, Guy, Bourguignon, Jean

“…Highly diastereoselective protonation of chiral lactam enolates of 4-substituted-1,4-dihydroisoquinolin-3-ones is reported. Protonation and alkylation…”
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First halogen-dance reaction in quinoline series: application to a new synthesis of quindoline by Arzel, Erwan, Rocca, Patrick, Marsais, Francis, Godard, Alain, Quéguiner, Guy

“…The first halogen-dance reaction in quinoline series is described as well as a new convergent synthesis of quindoline, a natural benzo-δ-carboline. The first…”
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First Syntheses of Caerulomycin E and Collismycins A and C. A New Synthesis of Caerulomycin A by Trécourt, François, Gervais, Bruno, Mongin, Olivier, Le Gal, Catherine, Mongin, Florence, Quéguiner, Guy

“…Caerulomycins produced by Streptomyces caeruleus, and collismycins more recently isolated from Streptomyces species, are bipyridinic molecules endowed with…”
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Cross-Coupling Reactions of Phenylmagnesium Halides with Fluoroazines and Fluorodiazines by Mongin, Florence, Mojovic, Ljubica, Guillamet, Benoît, Trécourt, François, Quéguiner, Guy

“…The first nickel-catalyzed cross-coupling reactions between fluoroarenes and aryl organometallics using commercially available ligands are described. The…”
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New NADH models bearing a phosphonate or a chiral oxazaphospholidine oxide at the dihydropyridine ring by Vasse, Jean-Luc, Goumain, Sophie, Levacher, Vincent, Dupas, Georges, Quéguiner, Guy, Bourguignon, Jean

“…Novel NADH models bearing a phosphonate at the 3-position of a stable 1,4-dihydroquinoline structure were successfully involved in the reduction of methyl…”
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Deprotonation of Benzoxazole and Oxazole Using Lithium Magnesates by Bayh, Omar, Awad, Haçan, Mongin, Florence, Hoarau, Christophe, Bischoff, Laurent, Trécourt, François, Quéguiner, Guy, Marsais, Francis, Blanco, Fernando, Abarca, Belén, Ballesteros, Rafael

“…The first deprotonations of oxazole and benzoxazole using lithium magnesates are described. The reactions occurred in tetrahydrofuran at room temperature using…”
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Synthesis of Pyrazine Alcaloids from Botryllus leachi. Diazines 43 by Buron, Frédéric, Plé, Nelly, Turck, Alain, Queguiner, Guy

“…Regioselective metalation of pyrazines and cross-coupling reactions provides an easy access to botryllazines A and B and to an isomer of botryllazine A with…”
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Synthesis of a Heterocyclic Amine and Acid Receptor by Brière, Jean-François, Dupas, Georges, Quéguiner, Guy, Bourguignon, Jean

“…The synthesis of a molecule able to bind both with an amine and a carboxylic acid is described. This new host consists in a pyrroloisoquinoline structure…”
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Syntheses of N-diazinyl thiocarboxamides and of thiazolodiazines. Metalation studies. Diazines XXXIII by Fruit, Corinne, Turck, Alain, Plé, Nelly, Quéguiner, Guy

“…Two thiazolodiazines were prepared from the corresponding N‐diazinylcarboxamides by use of Lawesson's reagent. Two N‐diazinylthiocarboxamides were obtained…”
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Chiral NADH Models in the Pyrido[3,2-c]azepin Series. Conformational Effect of the Carbonyl Group in the Stereocontrol of Reductions by Bédat, Joëlle, Levacher, Vincent, Dupas, Georges, Quéguiner, Guy, Bourguignon, Jean

“…Asymmetric reduction of methyl benzoylformate with the chiral NADH model 2 in the pyrido[3,2-c]azepin series afforded methyl mandelate in 91% optical yield…”
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New syntheses of the marine alkaloids eudistomins D and U by Rocca, Patrick, Marsais, Francis, Godard, Alain, Quéguiner, Guy, Adams, Luqman, Alo, Babajide

“…Short and convergent syntheses of eudistomins U and D are reported. The approach is based on a convergent methodology which involves such reactions as…”
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