Journal ArticleDOI
Rapid chromatographic technique for preparative separations with moderate resolution
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Abstract:
(11) Potassium ferricyanide has previously been used to convert w'c-1,2-dicarboxylate groups to double bonds. See, for example, L. F. Fieser and M. J. Haddadln, J. Am. Chem. Soc., 86, 2392 (1964). The oxidative dldecarboxylation of 1,2-dlcarboxyllc acids is, of course, a well-known process. See Inter alia (a) C. A. Grob, M. Ohta, and A. Weiss, Helv. Chim. Acta, 41, 1911 (1958); and (b) E. N. Cain, R. Vukov, and S. Masamune, J. Chem. Soc. D, 98 (1969).read more
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Journal ArticleDOI
Organic Chromophores Based on a Fused Bis-Thiazole Core and Their Application in Dye-Sensitized Solar Cells
Alessio Dessì,Gabriella Barozzino Consiglio,Massimo Calamante,Gianna Reginato,Alessandro Mordini,Maurizio Peruzzini,Maurizio Taddei,Adalgisa Sinicropi,Maria Laura Parisi,Fabrizia Fabrizi de Biani,Riccardo Basosi,R. Mori,Michele Spatola,Mara Bruzzi,Lorenzo Zani +14 more
TL;DR: In this article, four new D-π-A organic dyes incorporating either a thiazolo[5,4-d]thiazole bicyclic system (TTZ1-2) or a benzo[1,2-d:4,5-d′]bisthiazole tricyclic unit (BBZ1−2) have been synthesized and fully characterized.
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Alkenylation of unactivated alkyl bromides through visible light photocatalysis
TL;DR: Two visible-light driven alkenylation reactions of unactivated alkyl bromides, which were enabled by the use of Ir(dF(CF3)ppy)2(dtbbpy)PF6 as the photocatalyst and (TMS)3SiH as the atom transfer reagent, were described for the first time.
Direct Observation of Intermediates Involved in the Interruption of the Bischler–Napieralski Reaction
TL;DR: In this article, the first mechanistic investigation of electrophilic amide activation of α,α-disubstituted tertiary lactams and the direct observation of key intermediates by in situ FTIR, 1H, 13C, and 19F NMR in their interrupted Bischler-Napieralski-based synthetic strategy to the aspidosperma alkaloids, including a complex tetracyclic diiminium ion, is discussed.
Journal ArticleDOI
Mechanism of abietadiene synthase catalysis: stereochemistry and stabilization of the cryptic pimarenyl carbocation intermediates.
TL;DR: Three 8-oxy-17-nor analogues of 9 and three isomeric 15,16-bisnorpimarenyl-N-methylamines (26a-c) were synthesized and evaluated as alternative substrates and/or inhibitors for recombinant AS from grand fir.
Journal ArticleDOI
Cu-catalyzed Goldberg and Ullmann reactions of aryl halides using chelating N- and O-based ligands
TL;DR: The general procedure described in this text includes a detailed description of an appropriate reaction setup, two methods for assaying the crude reaction mixture (gas chromatography and thin layer chromatography) and a procedure for the isolation, purification and characterization of the anticipated product.