Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Sam H. Leung"'
Publikováno v:
ARKIVOC, Vol 2002, Iss 6, Pp 264-278 (2002)
Externí odkaz:
https://doaj.org/article/2e3c2c4eb74c4cb58a210e0e160d6132
Autor:
Stephen K. Chapes, Virginia Rider, Michael E Madden, John A. Stanford, Bridgett R. K. Chapin, Sarah E. Velasquez, William J. Hendry, Robert E. Ward, Tim G. Burnett, K. Abraham, Sam H. Leung
Publikováno v:
Advances in Physiology Education. 42:104-110
The Kansas-IDeA Network of Biomedical Research Excellence (K-INBRE) is an infrastructure-building program funded by the National Institute of General Medical Sciences. Undergraduate education, through undergraduate research, is a key component of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c760203f764d52eea323a533e8c7a848
https://doi.org/10.1152/advan.00093.2017
https://doi.org/10.1152/advan.00093.2017
Publikováno v:
Journal of Chemical Education. 93:1766-1769
Experiments in laboratory manuals intended for general, organic, and biological (GOB) chemistry laboratories include few opportunities for students to engage in instrumental methods of analysis. Many of these students seek careers in modern health-re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07318e2491ddd7052d37ff026cd65455
https://doi.org/10.1021/acs.jchemed.6b00344
https://doi.org/10.1021/acs.jchemed.6b00344
Publikováno v:
Journal of Chemical Education. 88:492-495
The determination of total phenolics in foods and fruit juices was used successfully as a laboratory experiment in our undergraduate general, organic, and biological (GOB) chemistry course. Two different colorimetric methods were used over three year
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::219ea95d668130f3e462add4bf929c38
https://doi.org/10.1021/ed100775n
https://doi.org/10.1021/ed100775n
Autor:
Jiasheng Guo, Douglas F. Fry, Sundaramoorthi Rajeswari, Guolin Cai, Imad M. Adel Odeh, Sam H. Leung, Subhas C. Buddhu, Douglas A. Pippin, Sheila I. Hauck, Indranath Ghosh, Peter A. Jacobi, Lisa D. Coutts, Wanjun Zheng, Robert Desimone
Publikováno v:
Synlett. 2005:2861-2885
An account is given of the author's several approaches to the synthesis of the parent chromophore of phytochrome (1), a protein-bound linear tetrapyrrole derivative that controls photomorphogenesis in higher plants. These studies culminated in enanti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f5b91d944525915b3322512e49cf3e0
https://doi.org/10.1055/s-2005-918956
https://doi.org/10.1055/s-2005-918956
Publikováno v:
ARKIVOC, Vol 2002, Iss 6, Pp 264-278 (2002)
ResearcherID
ResearcherID
Methyl esters 2, 3, and 5 of corallistins B, C, and E, respectively, isolated from the Coral Sea demosponge Corallistes sp., were successfully synthesized by the MacDonald method (for corallistin B ester) and via a,c-biladiene cyclization (for corall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a51ddca2bd760b9c6d595008c2dafcab
https://www.arkat-usa.org/arkivoc-journal/browse-arkivoc/ark.5550190.0003.623
https://www.arkat-usa.org/arkivoc-journal/browse-arkivoc/ark.5550190.0003.623
Publikováno v:
Journal of Porphyrins and Phthalocyanines. :607-616
Isoporphyrin zinc(II) complexes can be synthesized using the MacDonald ["2+2"] approach, with suitably substituted dipyrromethanes and 5,5-dialkyldipyrromethanes. The zinc(II) complexes are stable, show characteristic optical and1H NMR spectra, and h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66c335b28abedf98ba905a35f6103460
https://doi.org/10.1142/s1088424602000750
https://doi.org/10.1142/s1088424602000750
Autor:
Peter A. Jacobi, Sam H. Leung, Jiasheng Guo, Douglas Pippin, Robert Desimone, Indranath Ghosh
Publikováno v:
The Journal of Organic Chemistry. 65:8478-8489
Pyrromethenone 7, the C,D-ring segment of phytochrome (Pr, 4), has been prepared in an efficient fashion employing three new strategies. Each of these has potential advantages for the synthesis of labeled material. Our first approach is related to th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6daf176be8e248aca37d3590b6fdf37e
https://doi.org/10.1021/jo005531k
https://doi.org/10.1021/jo005531k
The polymer-supported MacDonald-type porphyrin synthesis: coupling of two dissimilar dipyrromethanes
Publikováno v:
Tetrahedron Letters. 41:7423-7426
Syntheses of two completely unsymmetrical porphyrins have been achieved by MacDonald-type condensations of polymer-bound 9-formyldipyrromethanes with dissimilar solution-phase dipyrromethanes. The chemoselectivity of the process depends on the nature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ee2d9bdd7472e183d7780f70fcf18df
https://doi.org/10.1016/s0040-4039(00)01269-7
https://doi.org/10.1016/s0040-4039(00)01269-7
Autor:
Kevin M. Smith, Nora Y. Nelson, Craig J. Medforth, Daniel J. Nurco, Laurent Jaquinod, and Jack Fajer, Steve Gentemann, Dewey Holten, Sam H. Leung
Publikováno v:
The Journal of Physical Chemistry B. 101:1247-1254
The photophysical properties and their temperature dependence are reported for the sterically encumbered nonplanar zinc and free base 2,3,5,7,8,10,12,13,15,17,18,20-dodecaphenylporphyrins (ZnDPP and H2DPP), and 2,3,7,8,12,13,17,18-octaethyl-5,10,15,2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c0462789dadf1ef8be636015a4d61df
https://doi.org/10.1021/jp9631137
https://doi.org/10.1021/jp9631137