Výsledky vyhledávání - "Pseudoconhydrine"

Application of hydroformylation for the stereoselective synthesis of piperidine alkaloids

Autor: Sivarajan Kasinathan

This thesis describes the advantages of hydroformylation, when incorporated into natural product synthesis as well as, flow chemistry. The first chapter gives a brief overview of application of hydroformylation in natural product synthesis. It highli

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5aafa20a4d5cc36aeb771fc36017637
https://doi.org/10.32657/10356/58924

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Diastereoselective total synthesis of 3,6-disubstituted piperidine alkaloids, (3R,6S)-epi-pseudoconhydrine and (3R,6R)-pseudoconhydrine

Autor: U. K. Syam Kumar, Subbarao Jammula, Vikas Gajare, Sandip R. Khobare, Y. L. N. Murthy

Publikováno v: Tetrahedron Letters. 54:2909-2912

Diastereoselective total synthesis of 3,6-disubstituted piperidine alkaloids, epi -pseudoconhydrine ( 1 ) and pseudoconhydrine ( 2 ) has been developed starting from enantiopure ( S )-epichlorohydrin. The key steps in the synthesis of these alkaloids

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::910fd192d65ed5297052a994871dfcd1
https://doi.org/10.1016/j.tetlet.2013.03.051

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Stereoselective total synthesis of the piperidine alkaloids, (+)-coniine, (+)-pseudoconhydrine, and (+)-sedamine through a common intermediate

Autor: Kanaparthy Suneel, Biswanath Das, Gandham Satyalakshmi, Digambar Balaji Shinde

Publikováno v: Tetrahedron: Asymmetry. 22:1000-1005

The stereoselective total synthesis of the piperidine alkaloids, (+)-coniine, (+)-pseudoconhydrine and (+)-sedamine has been achieved through a common intermediate generated from butane-1,4-diol. The synthetic sequence involves a Maruoka asymmetric a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cd891293e9c0d14d5fdc9f8f158048cf
https://doi.org/10.1016/j.tetasy.2011.06.011

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Asymmetric syntheses of (−)-epi-pseudoconhydrine and (−)-5-hydroxysedamine based on a cis-diastereoselective 1,4-asymmetric induction

Autor: Chen-Guo Feng, Gang Liu, Pei-Qiang Huang, Jie Meng

Publikováno v: Tetrahedron: Asymmetry. 19:1297-1303

The asymmetric syntheses of (−)- epi -pseudoconhydrine and (−)-5-hydroxysedamine are reported. The key to these syntheses is an unusual highly cis -diastereoselective 1,4-asymmetric induction in the α-amidoallylation of the new chiral building b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d188e052c1b4b3939e77ee5fa6d5393
https://doi.org/10.1016/j.tetasy.2008.05.002

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ChemInform Abstract: A Novel Route to 6-Substituted Piperidin-3-ols via Domino Cyclization of 2-Hydroxy-6-phosphinyl-5-hexenyl Tosylates with Primary Amines: Synthesis of (.+-.)-Pseudoconhydrine (V) and (.+-.)-epi-Pseudoconhydrine (VI)

Autor: G. Adiwidjaja, Cathrin Scherner, Ernst Schaumann, Jens‐Kerim Ergueden

Publikováno v: ChemInform. 46

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::88b4c67377f10eb93c425bf0a0d7a0c0
https://doi.org/10.1002/chin.201511210

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Coniine, Conhydrine, and Pseudoconhydrine (The C-Skeleton Derived from a C 8 -Fatty Acid and N from Transamination)

Autor: Sunil Kumar Talapatra, Bani Talapatra

Publikováno v: Chemistry of Plant Natural Products ISBN: 9783642454097

In ancient Greece, the extracts of hemlock (Conium maculatum L., Fam. Umbelliferae) were used for the execution of criminals. Plato (427–347 BC) described the death of Socrates (about 470–399 BC): Socrates was made to drink a cup of hemlock extra

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https://doi.org/10.1007/978-3-642-45410-3_17

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Stereoselective Route towards 2,5-Disubstituted Piperidine Alkaloids. Synthesis of (+)-Pseudoconhydrine and (±)-epi-Pseudoconhydrine

Autor: Jan-E. Bäckvall, Joakim Löfstedt, Helena Pettersson-Fasth

Publikováno v: Tetrahedron. 56:2225-2230

This paper describes a new general approach towards functionalized piperidine alkaloids, based on the stereo- and regioselective palladium(0)-catalyzed nucleophilic ring-opening of vinyl epoxides by nitrogen nucleophiles. The latter reaction provides

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8eaa7a55f05325eb6b072b17c3a65086
https://doi.org/10.1016/s0040-4020(99)01105-9

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Diastereoselective Synthesis of Nonracemic 2-Alkyl-5-Hydroxypiperidines with (2R,5S)-Configuration via a Tandem Wittig [2+3] Cycloaddition Reaction. Synthesis of epi-Pseudoconhydrine and Its Homologs

Autor: Claus Herdeis, Thomas Schiffer

Publikováno v: Synthesis. 1997:1405-1410

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https://doi.org/10.1055/s-1997-1366

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Enantiospecific Synthesis of 2,5-Disubstituted Piperidine Derivatives: Synthesis of (+)-Pseudoconhydrine

Autor: Pierre Potier, Claude Riche, Michael Dockner, N.André Sasaki

Publikováno v: Liebigs Annalen. 1997:1267-1272

A novel methodology for the synthesis of any one of the four stereoisomers of a 2,5-disubstituted piperidine in optically pure form is described, starting from readily available chiral building blocks 10 and 11 (or their antipodes). The utility of th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6096363241d2107122075e1d4cee1931
https://doi.org/10.1002/jlac.199719970633

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