Zobrazeno 1 - 10 of 19 pro vyhledávání: '"Gordon H. Bokelman"'
1
Total synthesis of indole and dihydroindole alkaloids. XII. Selective functionalization of various bisindoles. Efficient syntheses of leurosine and related bisindole alkaloid derivatives
Autor: A. H. Ratcliffe, Toshio Honda, Isamu Itoh, Brian R. Worth, John Balsevich, Gordon H. Bokelman, Toshihiko Hibino, James P. Kutney
Publikováno v: Canadian Journal of Chemistry. 56:62-70
Studies involving selective functionalization of the indole unit in a number of bisindole alkaloids and related synthetic derivatives are described. These investigations include such reagents as tert-butyl hydroperoxide, which provides an efficient p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::89fcc5fb4d030126577472dcc9655c10
https://doi.org/10.1139/v78-011
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2
Freeze-dried and platinum-carbon replicated 35Å cellulose microfibrils are triple-stranded and left-hand twisted
Autor: George C. Ruben, Gordon H. Bokelman
Publikováno v: Proceedings, annual meeting, Electron Microscopy Society of America. 44:58-61
To contrast enhance unidirectional (45° angle) 15-18Å thick Pt/C coated cellulose specimens backed with 100-173Å thick carbon films, micrographs were contrast reversed on Kodak 7302 fine grain positive film. In addition to increasing the contrast
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cab9c4f0de76f11fef45560aaefb449b
https://doi.org/10.1017/s0424820100142013
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4
Total synthesis of indole and dihydroindole alkaloids. X.1,2 The preparation of novel oxygenated catharanthine derivatives
Autor: Ping-Huang Liao, Masahiro Ichikawa, Gordon H. Bokelman, Edwin Jahngen, James P. Kutney, Alummoottil V. Joshua, Brian R. Worth
Publikováno v: Canadian Journal of Chemistry. 55:3227-3234
Detailed investigations involving the electrophilic attack of various reagents on the 3,4-double bond of catharanthine derivatives (e.g. 3, R = O) furnished a series of novel derivatives of potential use in the syntheses of naturally occurring bisind
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::70effe2c04e73ddb0362d8c49267bc3e
https://doi.org/10.1139/v77-449
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