benzoyl chloride, EME, and pyridine. Synthesis of 2,6-disubstituted 1,4-dihydropyridines.Anthony J. Burke, Stephen G. Davies, A. Christopher Garner, Tom D. McCarthy, Paul M. Roberts, Andrew D. Smith, Humberto Rodriguez-Solla, Richard J. Vickers.Asymmetric synthesis and applications of β-amino Weinreb amides: asymmetric synthesis of (S)-coniine.Philip M. Weintraub, Jeffrey S. Sabol, John M. Kane, David R. Borcherding.Recent advances in the synthesis of piperidones and piperidines.Ann M Chippindale, Stephen G Davies, Keiji Iwamoto, Richard M Parkin, Christian A.P Smethurst, Andrew D Smith, Humberto Rodriguez-Solla.Asymmetric synthesis of cyclic β-amino acids and cyclic amines via sequential diastereoselective conjugate addition and ring closing metathesis.Andre B. Charette, Michel Grenon, Alexandre Lemire, Mehrnaz Pourashraf, Jonathan Martel.ChemInform Abstract: Practical and Highly Regio- and Stereoselective Synthesis of 2-Substituted Dihydropyridines and Piperidines: Application to the Synthesis of (-)-Coniine..D. Scott Coffey, Stanley P. Kolis, Scott A. May.Chapter 6.1 Six-membered ring systems: Pyridines and benzo derivatives.Your Mendeley pairing has expired. Ortega-Alfaro, J.G. The solvent was dried over sodium sulfate and evaporated in vacuo. Cui, Bing; Kong, Shasha; Wu, Guiping; Miao, Zhiwei; Chen, Ruyu: Lewis Acid Catalyzed Diastereoselective Vinylogous Mannich Reaction Induced by O-Pivaloylated d-Galactosylamine as the Chiral Auxiliary: Stereoselective Synthesis of 6-Arylpiperidin-2-ones Bull, James J. Mousseau, Guillaume Pelletier, and André B. Charette .Synthesis of Pyridine and Dihydropyridine Derivatives by Regio- and Stereoselective Addition to N-Activated Pyridines.Chihiro Tsukano, Atsuko Oimura, Iderbat Enkhtaivan, and Yoshiji Takemoto .Synthesis of Highly Oxidized Quinolizidine via Reduction of Acylpyridinium Cations, and Total Syntheses of Quinolizidines 207I and 1-epi-207I.Timothy J. Donohoe, Matthew J. Connolly, Akshat H. Rathi, and Lesley Walton .Intramolecular Hydride Addition to Pyridinium Salts: New Routes to Enantiopure Dihydropyridones.ChristianNadeau , Sara Aly, and Kevin Belyk .Rhodium-Catalyzed Enantioselective Addition of Boronic Acids to N-Benzylnicotinate Salts.Gérald Lemonnier and André B. Charette.Stereoselective Synthesis of 2,3,6-Trisubstituted Tetrahydropyridines via Tf2O-Mediated Grob Fragmentation: Access to Indolizidines (−)-209I and (−)-223J.Guillaume Pelletier, William S. Bechara, and André B. Charette.Controlled and Chemoselective Reduction of Secondary Amides.Alexandre Lemire and André B. Charette.Stereoselective Syntheses of l-Pipecolic Acid and (2S,3S)-3-Hydroxypipecolic Acid from a Chiral N-Imino-2-phenyl-1,2-dihydropyridine Intermediate.Hans Andersson, Thomas Sainte-Luce Banchelin, Sajal Das, Magnus Gustafsson, Roger Olsson and Fredrik Almqvist.Complete Regioselective Addition of Grignard Reagents to Pyrazine N-Oxides, Toward an Efficient Enantioselective Synthesis of Substituted Piperazines.Guillaume Barbe, Guillaume Pelletier and André B. Charette.Intramolecular Pyridine Activation−Dearomatization Reaction: Highly Stereoselective Synthesis of Polysubstituted Indolizidines and Quinolizidines.Guillaume Barbe, Miguel St-Onge and André B. Charette.Silver Ion-Induced Grob Fragmentation of γ-Amino Iodides: Highly Stereoselective Synthesis of Polysubstituted Piperidines.Guillaume Pelletier, Alexandre Larivée and André B. Charette.Highly Regioselective Intermolecular Arylation of 1,2,3,4-Tetrahydropyridines.Total Synthesis of (+)-Lepadin B: Stereoselective Synthesis of Nonracemic Polysubstituted Hydroquinolines Using an RC-ROM Process.Sun-Liang Cui, Jing Wang and Yan-Guang Wang.Synthesis of Indoles via Domino Reaction of N-Aryl Amides and Ethyl Diazoacetate.Christian Dubs, Yoshitaka Hamashima, Naoki Sasamoto, Thomas M. Seidel, Shoko Suzuki, Daisuke Hashizume and Mikiko Sodeoka .Mechanistic Studies on the Catalytic Asymmetric Mannich-Type Reaction with Dihydroisoquinolines and Development of Oxidative Mannich-Type Reactions Starting from Tetrahydroisoquinolines.Sophie Lauzon, François Tremblay, David Gagnon, Cédrickx Godbout, Christine Chabot, Catherine Mercier-Shanks, Stéphane Perreault, Hélène DeSève and Claude Spino.Sterically Biased 3,3-Sigmatropic Rearrangement of Chiral Allylic Azides: Application to the Total Syntheses of Alkaloids.Gareth Arnott, Heloise Brice, Jonathan Clayden and Emma Blaney.Electrophile-Induced Dearomatizing Spirocyclization of N-Arylisonicotinamides: A Route to Spirocyclic Piperidines.Thomas C. Coombs,, Maurice D. Lee, IV,, Heilam Wong,, Matthew Armstrong,, Bo Cheng,, Wenyong Chen,, Alessandro F. Moretto, and.Practical, Scalable, High-Throughput Approaches to η3-Pyranyl and η3-Pyridinyl Organometallic Enantiomeric Scaffolds Using the Achmatowicz Reaction.Highly Chemoselective Metal-Free Reduction of Tertiary Amides.Alexandre Larivée,, James J. Mousseau, and.Palladium-Catalyzed Direct C−H Arylation of N-Iminopyridinium Ylides: Application to the Synthesis of (±)-Anabasine.Zhankui Sun,, Shouyun Yu,, Zuoding Ding, and.Enantioselective Addition of Activated Terminal Alkynes to 1-Acylpyridinium Salts Catalyzed by Cu−Bis(oxazoline) Complexes.Stéphane Lebrun,, Axel Couture,, Eric Deniau, and.Asymmetric Synthesis of 6-Alkyl- and 6-Arylpiperidin-2-ones.
popular with defense attorneys. DOI: 10.1002/chin.200217126. This page was last edited on 12 December 2013, at 01:28. D'Addieco.G. The crude (+)-cocaine hydrochloride was When the separate enantiomers are mixed they give racemic crystals in gold chloride-HOAc as described by Allen.The infrared spectra of levo-, dextro- and racemic cocaine hydrochloride are identical. near the freezing point of water in an acid medium to yield the equatorial 3-hydroxy isomers of EME and PEME. filtered and dried yielding 2.28 g of (+)-ecgonine methyl ester hydrochloride (27%).
hydrochloride was dissolved into 20 ml of water, made pH 8 with 5% ammonium hydroxide, and extracted 4 times Stemona 6.95 g of anhydrous (+)-2-CMT bitartrate (30%), [α],Into a three-neck 500 ml round bottom flask was placed 7.70 g (0.036 mol) of (-)-2-CMT hydrate with 51 ml
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