Zobrazeno 1 - 10 of 14 pro vyhledávání: '"Mark A. Holoboski"'
1
Total Synthesis of Rhizoxin D, a Potent Antimitotic Agent from the Fungus Rhizopus chinensis
Autor: Paul R. Blakemore, Christine S. Nylund Kolz, Neal J. Green, James D. White, E Bryan Hauser, Linda E Keown, Mark A. Holoboski, Barton W. Phillips
Publikováno v: The Journal of Organic Chemistry. 67:7750-7760
Rhizoxin D (2) was synthesized from four subunits, A, B, C, and D representing C3-C9, C10-C13, C14-C19, and C20-C27, respectively. Subunit A was prepared by cyclization of iodo acetal 21, which set the configuration at C5 of 2 through a stereoselecti
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6645d54b150ffcbcba7aa3a764af9752
https://doi.org/10.1021/jo020537q
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3
The First Asymmetric Total Syntheses of (+)-Lycorine and (+)-1-Deoxylycorine
Autor: Arthur G. Schultz, Mark A. Holoboski, Mark S. Smyth
Publikováno v: Journal of the American Chemical Society. 118:6210-6219
The first asymmetric total syntheses of (+)-1-deoxylycorine (2a) and (+)-lycorine (2b), the unnatural enantiomer of lycorine (1), are described. Construction of lactam 12, a key intermediate in the synthesis of both 2a and 2b, began by Birch reductio
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eeda2458b5db38bfed6c2ad6b1323dd8
https://doi.org/10.1021/ja9606440
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4
Dehydrogenations with lead tetraacetate. Ketone to enone transformations in the 2-(aminocarbonyl)- and 2-(carbalkoxy)cycloalkanone series
Autor: Mark A. Holoboski, Arthur G. Schultz
Publikováno v: Tetrahedron Letters. 34:3021-3024
Cyclic β-ketoesters and β-ketoamides are converted to 2-(carbalkoxy)- and 2-(aminocarbonyl)-2-cycloalken-1-ones by treatment with Pb(OAc)4 and Cu(OAc)2 in benzene.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::418fe7585345c4e6da3485d79b7e9e4d
https://doi.org/10.1016/s0040-4039(00)93368-9
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6
ChemInform Abstract: Dehydrogenations with Lead Tetraacetate. Ketone to Enone Transformations in the 2-(Aminocarbonyl) and 2-(Carbalkoxy) cycloalkanone Series
Autor: Arthur G. Schultz, Mark A. Holoboski
Publikováno v: ChemInform. 24
Cyclic β-ketoesters and β-ketoamides are converted to 2-(carbalkoxy)- and 2-(aminocarbonyl)-2-cycloalken-1-ones by treatment with Pb(OAc)4 and Cu(OAc)2 in benzene.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5aa632169a59ba4aee7197a3ee09b0d4
https://doi.org/10.1002/chin.199340118
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9
ChemInform Abstract: The First Asymmetric Total Syntheses of (+)-Lycorine and (+)-1- Deoxylycorine
Autor: Mark S. Smyth, Mark A. Holoboski, Arthur G. Schultz
Publikováno v: ChemInform. 27
The first asymmetric total syntheses of (+)-1-deoxylycorine (2a) and (+)-lycorine (2b), the unnatural enantiomer of lycorine (1), are described. Construction of lactam 12, a key intermediate in the synthesis of both 2a and 2b, began by Birch reductio
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4343407c9997497a43b3546710b34a46
https://doi.org/10.1002/chin.199641219
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