Zobrazeno 1 - 10 of 18 pro vyhledávání: '"Indolizidine 223AB"'
1
A General, Convergent Strategy for the Construction of Indolizidine Alkaloids: Total Syntheses of (−)-Indolizidine 223AB and Alkaloid (−)-205B
Autor: Dae-Shik Kim, Amos B. Smith
Publikováno v: The Journal of Organic Chemistry. 71:2547-2557
N-Toluenesulfonyl aziridines comprise effective second electrophiles in the solvent controlled three-component linchpin union of silyl dithianes for the stereocontrolled convergent elaboration of protected 1,5-amino alcohols. This tactic, in conjunct
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::320fcbbce55badcf49e0001a79fe2c89
https://doi.org/10.1021/jo052314g
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2
Bicyclo[3.3.1]nonanes as synthetic intermediates. Part 20.1 Asymmetric synthesis of the indolizidine alkaloids monomorine I and indolizidine 223AB
Autor: Yayoi Koike, Naoki Toyooka, Minoru Toshima, Sumie Seki, Takefumi Momose, Yoshiro Hirai
Publikováno v: Journal of the Chemical Society, Perkin Transactions 1. :1315-1322
Total syntheses of the indolizidine alkaloids monomorine I and indolizidine 223AB have been achieved by starting from the chiral cis-2,5-disubstituted pyrrolidine or cis-2,6-disubstituted piperidine obtained from the asymmetric cleavage of 8-azabicyc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4909bf995b9b6eb1e5c5a004d7b25a8b
https://doi.org/10.1039/a607981d
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4
The norrish type I photo-cleavage of (+)-2β-ethyl-9-azabicyclo[3.3.1]nonan-3-one: A short, enantioselective formal synthesis of (−)-Indolizidine 223ab
Autor: Takefumi Momose, Osamu Muraoka, Genzoh Tanabe, Tomomi Maeda, Kazuhito Okumura
Publikováno v: Tetrahedron: Asymmetry. 5:317-320
The enantioselective alkylation of the “fork head ketone” ( 1 ) followed by the Norrish Type I photo-cleavage provided the short enantioselective synthesis of (−)-indolizidine 223AB (4).
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c26d1a75e0e9e106c77c274c9ce0e296
https://doi.org/10.1016/s0957-4166(00)86195-9
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5
Asymmetric Heck cyclization route to indolizidine and azaazulene alkaloids: synthesis of (+)-5-epiindolizidine 167B and indolizidine 223AB
Autor: Gary A. Sulikowski, Mathew Tallant, Kurt Kiewel
Publikováno v: Tetrahedron Letters. 42:6621-6623
Asymmetric intramolecular Heck cyclization of endocyclic enamides occurs at room temperature to give indoloizidine and azaazulene ring systems in up to 86% enantiomeric excess. A synthesis of (+)-epiindolizidine 167B and formal synthesis of 5 E ,9 Z
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::85ce34561bb041b93d983045e3e5feea
https://doi.org/10.1016/s0040-4039(01)01361-2
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9
ChemInform Abstract: Asymmetric Heck Cyclization Route to Indolizidine and Azaazulene Alkaloids: Synthesis of (+)-5-Epiindolizidine 167B and Indolizidine 223AB
Autor: Kurt Kiewel, Gary A. Sulikowski, Mathew Tallant
Publikováno v: ChemInform. 32
Asymmetric intramolecular Heck cyclization of endocyclic enamides occurs at room temperature to give indoloizidine and azaazulene ring systems in up to 86% enantiomeric excess. A synthesis of (+)-epiindolizidine 167B and formal synthesis of 5 E ,9 Z
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1e7d6a2fd48496a6d241461202473cb2
https://doi.org/10.1002/chin.200150200
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