Search results for "Nitrile"
showing 10 items of 1539 documents
Synthesis of Isoxazole and 1,2,3-Triazole Isoindole Derivatives via Silver- and Copper-Catalyzed 1,3-Dipolar Cycloaddition Reaction.
2016
International audience; The CuI-or Ag 2 CO 3-catalyzed [3+2] cycloaddition of propargyl-substituted dihydroisoindolin-1-one (3) with arylnitrile oxides 1a-d (Ar = Ph, p-MeC 6 H 4 , p-MeOC 6 H 4 , p-ClC 6 H 4) produces in good yields novel 3,5-disubstituted isoxazoles 4 of the ethyl-2-benzyl-3-oxo-1-((3-arylisoxazol-5yl)methyl)-2,3-dihydro-1H-isoindole-1-carboxylate type. With aryl azides 2a-d (Ar = Ph, p-MeC 6 H 4 , p-OMeC 6 H 4 , p-ClC 6 H 4), a series of 1,4-disubstituted 1,2,3-triazoles 6 (ethyl-2-benzyl-3-oxo-1-((1-aryl-1H-1,2,3-triazol-4-yl)methyl)-2,3-dihydro-1H-isoindole-1-carboxylates) was obtained. The reactions proceed in a regioselective manner affording exclusively racemic adduc…
CCDC 241844: Experimental Crystal Structure Determination
2005
Related Article: J.Pinkas, J.Kubista, R.Gyepes, J.Cejka, P.Meunier, K.Mach|2005|J.Organomet.Chem.|690|731|doi:10.1016/j.jorganchem.2004.09.081
CCDC 741667: Experimental Crystal Structure Determination
2009
Related Article: J.Zhao, V.Bohmer, M.Bolte|2009|Acta Crystallogr.,Sect.E:Struct.Rep.Online|65|o1658|doi:10.1107/S1600536809023344
CCDC 1421617: Experimental Crystal Structure Determination
2016
Related Article: Jakob Wudarczyk, George Papamokos, Vasilis Margaritis, Dieter Schollmeyer, Felix Hinkel, Martin Baumgarten, George Floudas, Klaus Müllen|2016|Angew.Chem.,Int.Ed.|55|3220|doi:10.1002/anie.201508249
CCDC 1042088: Experimental Crystal Structure Determination
2015
Related Article: Kaisa Helttunen, Tiia-Riikka Tero, Maija Nissinen|2015|CrystEngComm|17|3667|doi:10.1039/C5CE00311C
CCDC 718575: Experimental Crystal Structure Determination
2010
Related Article: K.Salorinne, M.Nissinen|2009|CrystEngComm|11|1572|doi:10.1039/b902718a
CCDC 1507211: Experimental Crystal Structure Determination
2017
Related Article: D.Ryvlin, O.Dumele, A.Linke, D.Fankhauser, W.B.Schweizer, F.Diederich, S.R.Waldvogel|2017|ChemPlusChem|82|493|doi:10.1002/cplu.201700077
CCDC 886448: Experimental Crystal Structure Determination
2012
Related Article: T.-R.Tero, K.Salorinne, M.Nissinen|2012|CrystEngComm|14|7360|doi:10.1039/c2ce25972a
Mpro-SARS-CoV-2 Inhibitors and Various Chemical Reactivity of 1-Bromo- and 1-Chloro-4-vinylbenzene in [3 + 2] Cycloaddition Reactions
2021
The regioselectvity and the mechanism of the (32CA) cycloadditions reactions of 1-bromo-4-vinylbenzene 1 and 1-chloro-4-vinylbenzene 2 with benzonitrile oxide 3 were investigated under the molecular electron density theory (MEDT) at the B3LYP/6-311++G(d,p) computational level. Evaluation of the ELF reveals that these zwitterionic type (zw-type) 32CA reactions take place in a two-stage one-step mechanism. This MEDT study shows that the meta isoxazolines are kinetically and thermodynamically favored over the ortho ones, these 32CA reactions being completely regioselective, in agreement with experimental outcomes. In addition, the efficiency of isoxazolines against SARS-CoV-2 have been also in…