Zobrazeno 1 - 10 of 167 pro vyhledávání: '"G. B. Fisher"'
1
The geomorphic function and characteristics of large woody debris in low gradient rivers, coastal Maine, USA
Autor: M. Laser, G. B. Fisher, Gregory Mackey, Francis J. Magilligan, Keith H. Nislow, Jed Wright
Publikováno v: Geomorphology. 97:467-482
The role, function, and importance of large woody debris (LWD) in rivers depend strongly on environmental context and land use history. The coastal watersheds of central and northern Maine, northeastern U.S., are characterized by low gradients, moder
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d52644c8807c9adc9f2860eb3acc36f1
https://doi.org/10.1016/j.geomorph.2007.08.016
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2
Lithium Aminoborohydrides 16. Synthesis and Reactions of Monomeric and Dimeric Aminoboranes
Autor: G. B. Fisher, Bakthan Singaram, Dustin Haddenham, C. T. Goralski, Jacob W. Clary, Lubov Pasumansky
Publikováno v: The Journal of Organic Chemistry. 73:1898-1905
Aminoboranes are synthesized in situ from the reaction of the corresponding lithium aminoborohydrides (LABs) with methyl iodide, trimethylsilylchloride (TMS-Cl), or benzyl chloride under ambient conditions. In hexanes, the reaction using methyl iodid
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3415c0d86d121f546c426290e6dea2a
https://doi.org/10.1021/jo702271c
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3
Aminoborohydrides. 9. Selective reductions of aldehydes, ketones, esters, and epoxides in the presence of a nitrile using Lithium N,N-dialkylaminoborohydrides
Autor: G. B. Fisher, Christian T. Goralski, Adeena Reem, Bakthan Singaram, Christopher J. Collins
Publikováno v: Tetrahedron Letters. 38:529-532
A series of competitive reductions of several functional groups was carried out in the presence of aromatic and aliphatic nitriles using Lithium N,N-dimethylaminoborohydride (LiMe 2 NBH 3 ) or Lithium Pyrrolidinoborohydride (LiPyrrBH 3 ) as the reduc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a39d5f13b2d0ab704b9e41744abe0419
https://doi.org/10.1016/s0040-4039(96)02410-0
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4
Aminoborohydrides. 8. A facile reduction of aliphatic and benzylic azides to the corresponding amines in high yield and purity using lithium N,N-dimethylaminoborohydride
Autor: Salvador G. Alvarez, Bakthan Singaram, G. B. Fisher
Publikováno v: Tetrahedron Letters. 36:2567-2570
Lithium N,N-dimethylaminoborohydride (LiMe2NBH3) reduced both 3α-azidocholest-5-ene and 3β-azidocholest-5-ene in air to give the corresponding 3α-aminocholest-5-ene and 3β-aminocholest-5-ene in 98% isolated yields. Aliphatic and benzylic azides w
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2a8670a868938e49226b4e9a31c61d8a
https://doi.org/10.1016/0040-4039(95)00341-9
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5
Impact of glacial erosion on 10 Be concentrations in fluvial sediments of the Marsyandi catchment, central Nepal
Autor: Douglas W. Burbank, Bodo Bookhagen, Vincent Godard, D.L. Bourles, G. B. Fisher, Régis Braucher
Publikováno v: Journal of Geophysical Research: Earth Surface
Journal of Geophysical Research: Earth Surface, 2012, 117 (F3), pp.F03013. ⟨10.1029/2011JF002230⟩
Journal of Geophysical Research: Earth Surface, American Geophysical Union/Wiley, 2012, 117 (F3), pp.F03013. ⟨10.1029/2011JF002230⟩
International audience; Several processes contribute to denudation in high-mountain environments. Of these, glacial erosion is particularly difficult to constrain, despite its critical importance in the evolution of many mountain ranges. In this stud
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6aa17b5a1dd71c663f6631f333720efc
https://amu.hal.science/hal-01537127
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8
Aminoborohydrides. 4. The Synthesis and Characterization of Lithium Aminoborohydrides: A New Class of Powerful, Selective, Air-Stable Reducing Agents
Autor: Christian T. Goralski, G. B. Fisher, Bakthan Singaram, Salvador G. Alvarez, Joseph C. Fuller, Elizabeth R. Burkhardt, John Harrison
Publikováno v: The Journal of Organic Chemistry. 59:6378-6385
Lithium aminoborohydrides (LiABH3) are a new class of powerful yet selective reducing agents that reproduce, in air, virtually all of the transformations for which lithium aluminum hydride is now used. LiABH3’s can be readily prepared as solids or
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e7a6be59ec82f07245acb215d2faef8e
https://doi.org/10.1021/jo00100a046
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9
A Facile New Synthesis of Aldehyde Enamines in High Yield and High Purity
Autor: Frederick W. Klettke, Lawrence Lee, G. B. Fisher
Publikováno v: Synthetic Communications. 24:1541-1546
Aldehyde enamines were synthesized in excellent yield and purity by reacting an aldehyde with 2 equivalents of a secondary amine in cyclohexane in the presence of 1.5 equivalents of CaH2. Distilled yields ranged from 65%-92%.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9386bd0284a77f9c8226635761ada416
https://doi.org/10.1080/00397919408010154
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10
Boranes in synthesis. 3. Conversion of the morpholine and pyrrolidine enamines of symmetrical dialkylketones to the corresponding threo-β-amino alcohols via hydroboration/oxidation
Autor: Donald Zakett, Christian T. Goralski, L. W. Nicholson, Bakthan Singaram, G. B. Fisher, D. L. Hasha
Publikováno v: Tetrahedron Letters. 35:3251-3254
The hydroboration of the morpholine and pyrrolidine enamines of symmetrical dialkylketones with BMS followed by methanolysis and oxidation with basic hydrogen peroxide gave the corresponding threo-β-amino alcohols in moderate yields.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f466d76fc119e863dd7e488c1bb2f3bd
https://doi.org/10.1016/s0040-4039(00)76877-8
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