Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Jamison Wolfer"'
Publikováno v:
CHIMIA, Vol 61, Iss 5 (2007)
We present an array of [4+2] cycloaddition reactions between ketene enolates, catalytically derived from acid chlorides and cinchona alkaloid nucleophilic catalysts in the presence of stoichiometric base, and o-benzoquinone derivatives. These cycload
Externí odkaz:
https://doaj.org/article/9c5bb698a6d84e249460d1f21106a562
Autor:
Lloyd M. Smith, Michael R. Sussman, Jamison Wolfer, Cheng-Hsien Wu, Matthew C. D. Carter, David M. Lynn, Eric Codner, Matthew T. Holden
Publikováno v:
Analytical Chemistry. 87:11420-11428
The photolithographic fabrication of high-density DNA and RNA arrays on flexible and transparent plastic substrates is reported. The substrates are thin sheets of poly(ethylene terephthalate) (PET) coated with cross-linked polymer multilayers that pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39169cb9eecb80209d4782db83b6d708
https://doi.org/10.1021/acs.analchem.5b02893
https://doi.org/10.1021/acs.analchem.5b02893
Publikováno v:
Plant Physiology. 159:548-557
Our goal was to create a DNA chip that is as easy, convenient, and inexpensive as an agarose gel. For a first-generation solution, we describe a low-cost, easy-to-use de novo synthesis oligonucleotide microarray technology that draws on the inherent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8539f409da6f2f8c320a9fc2c584760
https://doi.org/10.1104/pp.112.195230
https://doi.org/10.1104/pp.112.195230
Autor:
Cajetan Dogo-Isonagie, Tefsit Bekele, Stefan France, Jamison Wolfer, Anthony Weatherwax, Andrew E. Taggi, Daniel H. Paull, Travis Dudding, Thomas Lectka
Publikováno v:
European Journal of Organic Chemistry. 2007:1091-1100
The mechanism of the catalytic, asymmetric α-bromination of acid chlorides is probed through a series of crossover experiments, ion-pairing tests, and kinetic resolution studies to shed light on the factors that contribute to, and limit the producti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d559a8cf98483cbc083d152f32591292
https://doi.org/10.1002/ejoc.200600819
https://doi.org/10.1002/ejoc.200600819
Autor:
Cajetan Dogo-Isonagie, Tefsit Bekele, Stefan France, Jamison Wolfer, Anthony Weatherwax, Andrew E. Taggi, Thomas Lectka
Publikováno v:
The Journal of Organic Chemistry. 71:8946-8949
The optimization of a practical, catalytic, asymmetric process for the alpha-bromination of acid chlorides to produce synthetically versatile, optically active alpha-bromoesters is reported. A range of products is produced in high enantioselectivity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e9b6f835b1dc7378df673c0435c2b7d
https://doi.org/10.1021/jo061522l
https://doi.org/10.1021/jo061522l
Publikováno v:
Angewandte Chemie. 118:7558-7560
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1909d0d9b76ddfcb1d45082a7acd9b04
https://doi.org/10.1002/ange.200602801
https://doi.org/10.1002/ange.200602801
Publikováno v:
Tetrahedron: Asymmetry. 16:3481-3483
We describe a column based flow system in which a cinchona alkaloid based reagent/catalyst solid-phase promotes the asymmetric α-chlorination of acid chlorides to afford highly optically active α-chloroesters in high enantiomeric excess and in good
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95691d780c0e77cbc731ce1a1d71d774
https://doi.org/10.1016/j.tetasy.2005.09.014
https://doi.org/10.1016/j.tetasy.2005.09.014
Publikováno v:
ChemInform. 39
We present an array of [4+2] cycloaddition reactions between ketene enolates, catalytically derived from acid chlorides and cinchona alkaloid nucleophilic catalysts in the presence of stoichiometric base, and o-benzoquinone derivatives. These cycload
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a488d222903a48a193a0d53c01505772
https://doi.org/10.1002/chin.200833245
https://doi.org/10.1002/chin.200833245
Autor:
Jamison Wolfer, Thomas Lectka, Daniel H. Paull, Cajetan Dogo-Isonagie, Ethan Alden-Danforth, Ciby J. Abraham
Publikováno v:
ChemInform. 38
A catalytic, asymmetric process for the synthesis of 1,4-benzoxazinones from o-benzoquinone imides and ketene enolates is reported. Addition of Lewis acids (Zn(OTf)2, In(OTf)3, and in particular Sc(OTf)3) creates a bifunctional catalytic system that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61a03ee382f162f6562782811a886123
https://doi.org/10.1002/chin.200748050
https://doi.org/10.1002/chin.200748050
Autor:
Ciby J. Abraham, Meha H. Shah, Jamison Wolfer, Thomas Lectka, and Anthony Weatherwax, Tefsit Bekele
Publikováno v:
ChemInform. 37
We report catalytic, enantioselective [4 + 2]-cycloadditions of o-quinones with ketene enolates (derived from readily available acid chlorides) using cinchona alkaloid derivatives as catalysts to produce products in high enantiomeric excess (ee) and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7347a7075f27793e013e40e1bd6ddf92
https://doi.org/10.1002/chin.200624161
https://doi.org/10.1002/chin.200624161