Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Silvana C. Ngo"'
Autor:
Silvana C. Ngo, Kaitlin M. Pugliese, Paul R. Savoie, Erica M. Hines, Jin-Hong Lin, John T. Welch
Publikováno v:
European Journal of Organic Chemistry. 2012:4902-4905
A facile preparation of aliphatic 2-pentafluorosulfanyl aldehydes is described. To investigate the utility of the aldehydes as synthetic building blocks, various transformations of the aldehydes were explored. The pentafluorosulfanyl group was stable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b2540bcdc9c8ab05a41e42d959f3c49
https://doi.org/10.1002/ejoc.201200763
https://doi.org/10.1002/ejoc.201200763
Autor:
Silvana C. Ngo, Dong Sung Lim, Seiichiro Higashiya, William H. Iv Kelly, Paul J. Toscano, John T. Welch, Woo Jin Chung
Publikováno v:
The Journal of Organic Chemistry. 69:6323-6328
A variety of mono- and difluoroacetylsilanes and the corresponding silyl enol ethers were prepared from trifluoroethanol and chlorotrialkylsilanes in the presence of LDA through retro-Brook rearrangement. Sterically demanding silyl groups, especially
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::538a27495316da044b188f5b8fe9c3aa
https://doi.org/10.1021/jo049551o
https://doi.org/10.1021/jo049551o
Autor:
John T. Welch, Seiichiro Higashiya, Paul J. Toscano, Silvana C. Ngo, Rolf U. Claessen, Christopher C. Wells, Andrei Kornilov, Kulbinder K Banger, Evgeny V. Dikarev
Publikováno v:
Journal of Organometallic Chemistry. 689:71-81
The sila-β-diketone, 2,2,6,6-tetramethyl-2-silaheptane-3,5-dione (tmshdH), was synthesized by the condensation of the anion of 2-trimethylsilyl-1,3-dithiane with 1-bromo-3,3-dimethylbutan-2-one, followed by unmasking of the latent carbonyl moiety wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5297651b51eb5934ac355206e710fa26
https://doi.org/10.1016/j.jorganchem.2003.09.032
https://doi.org/10.1016/j.jorganchem.2003.09.032
Autor:
Poay N Lim, Paul J. Toscano, Seiichiro Higashiya, Kulbinder K Banger, John T. Welch, Silvana C. Ngo
Publikováno v:
Inorganica Chimica Acta. 351:291-304
Fluorinated α-sila-β-diketones, synthesized in good yields via the Claisen condensation of the esters of fluorinated acids or fluorinated acid fluorides and the lithium enolates of acetyltrialkylsilanes, were employed in the preparation of volatile
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5b2e24e1afdf6f0167da1ced82db966
https://doi.org/10.1016/s0020-1693(03)00115-4
https://doi.org/10.1016/s0020-1693(03)00115-4
Autor:
Paul J. Toscano, Poay N Lim, Seiichiro Higashiya, John T. Welch, Silvana C. Ngo, Rolf U. Claessen, Kulbinder K Banger, Kenneth S. Bousman
Publikováno v:
Journal of Organometallic Chemistry. 678:15-32
The substitution of a carbon atom by silicon provides an attractive, novel approach to modification of the thermal stability and volatility of metal-organic chemical vapor deposition precursors supported by β-diketonate ancillary ligands. The low te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33ca11cb08b4b4e50cfaadba56e052a1
https://doi.org/10.1016/s0022-328x(03)00393-0
https://doi.org/10.1016/s0022-328x(03)00393-0
Publikováno v:
Polyhedron. 21:1289-1297
A series of Ag(I) complexes, [Ag(X)L], where X is the anion of 2,2,6,6-tetramethyl-3,5-heptanedione (tmhdH), 2,2,7-trimethyl-3,5-octanedione (tmodH), 2-sila-2,2,6,6-tetramethyl-3,5- heptanedione (tmshdH), 5-mercapto-2,2,6,6-tetramethyl-4-hepten-3-one
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bb1b4bd4e7ad3ef09fded786817e367
https://doi.org/10.1016/s0277-5387(02)00980-4
https://doi.org/10.1016/s0277-5387(02)00980-4
Publikováno v:
Macromolecules. 27:2757-2760
Pseudo interpenetrating polymer networks (IPN's) of linear syndiotactic polystyrene (syn-PS) and cross-linked atactic polystyrene (c-PS) were prepared and characterized. The crystalline behavior of syn-PS in polymer networks and the morphology of pse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4231a732fc80c78facea96bf98114f97
https://doi.org/10.1021/ma00088a016
https://doi.org/10.1021/ma00088a016
Publikováno v:
ChemInform. 40
A solution of SF5Br in CCl3F (0.5–1 M) was utilized to effect the addition of pentafluorosulfanyl bromide (SF5Br) to olefins. The reaction of the SF5Br solution in the presence of triethylborane (0.1 equiv) with an olefin over 20 min at 0 °C gave
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc415583b60492a07854bc8b0285f443
https://doi.org/10.1002/chin.200901040
https://doi.org/10.1002/chin.200901040
Autor:
Silvana C. Ngo, William R. Jacobs, Woo Jin Chung, Oren Zimhony, Halimah Sayahi, John T. Welch
Publikováno v:
Antimicrobial agents and chemotherapy. 51(7)
An analog of pyrazinamide (PZA), 5-chloropyrazinamide (5-Cl-PZA), has previously been shown to inhibit mycobacterial fatty acid synthase I (FASI). FASI has been purified from a recombinant strain of M. smegmatis ( M. smegmatis Δfas1 attB :: M. tuber
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c27386c2372884de261793b56378aff
https://pubmed.ncbi.nlm.nih.gov/17485499
https://pubmed.ncbi.nlm.nih.gov/17485499
Publikováno v:
Biomacromolecules. 8(5)
The design and rapid construction of libraries of genes coding beta-sheet forming repetitive and block-copolymerized polypeptides bearing various C- and N-terminal sequences are described. The design was based on the assembly of DNA cassettes coding
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e904101bdd98dedcdd5e5e0bdef82eb2
https://pubmed.ncbi.nlm.nih.gov/17388563
https://pubmed.ncbi.nlm.nih.gov/17388563