Výsledky vyhledávání - "Anna C. Dawsey"

A (Fluoroalkyl)Guanidine Modulates the Relaxivity of a Phosphonate-Containing T 1 -Shortening Contrast Agent

Autor: Travis J. Williams, Buddhima N. Siriwardena-Mahanama, Xinping Wu, Matthew J. Allen, Anna C. Dawsey

Publikováno v: Journal of Fluorine Chemistry. 168:177-183

Responsive magnetic resonance imaging (MRI) contrast agents, those that change their relaxivity according to environmental stimuli, have promise as next generation imaging probes in medicine. While several of these are known based on covalent modific

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::571a0302992e0b5699957876c519074c
https://doi.org/10.1016/j.jfluchem.2014.09.018

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Method performance and clinical workflow outcomes associated with meconium and umbilical cord toxicology testing

Autor: Justine A. Pardi, R. Brent Dixon, Jaime R. Swartzwelder, Karen E. Gebhardt, Ruth M. Labardee, Steven W. Cotten, Anna C. Dawsey

Publikováno v: Clinical biochemistry. 50(18)

Objective Neonatal abstinence syndrome (NAS) is a rising concern with unknown long-term effects. It is apparent that higher cost of care, impact on the community and reduced quality of life are associated with similar etiologies ( e.g. , fetal alcoho

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0884e3b5d7ea3b6b6beef929302a3972
https://pubmed.ncbi.nlm.nih.gov/28941590

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Synthesis and Crystal Structure Determination of Methyl 2-acetyl-5′-phenyl-2H-spiro[benzo[d]isothiazole-3,3′-pyrazole]-1,1-dioxide-2′(4′H)-carboxylate and Methyl 2-acetyl-5′-(2-thienyl)-2H-spiro[benzo[d]isothiazole-3,3′-pyrazole]-1,1-dioxide-2′(4′H)-carboxylate

Autor: Kevin J. Bigham, Jordan B. Brown, William T. Pennington, Anna C. Dawsey, Clyde R. Metz, John D. Knight, Don VanDerveer, Charles F. Beam

Publikováno v: Journal of Chemical Crystallography. 40:296-301

Dilithiated C(α), N-carbomethoxyhydrazones were condensed with lithiated methyl 2-(aminosulfonyl)benzoate to afford intermediates that were isolated and not characterized but cyclized with acetic anhydride, which also resulted in N-acetylation. The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3c564abfd6c325a8e53d9fc149c03a3a
https://doi.org/10.1007/s10870-009-9649-2

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Preparation of 2H-spiro[benzo[d]isothiazole-3,3′-pyrazole]-1, 1-dioxide-2′(4′H)-carboxylates from dilithiatedC(α),N-carboalkoxyhydrazones and methyl 2-(aminosulfonyl)benzoate

Autor: Don VanDerveer, Anna C. Dawsey, Clyde R. Metz, Andrew J. Puciaty, Chandra Potter, Ellyn A. Smith, Amanda M. Acevedo-Jake, Charles F. Beam, William T. Pennington, Zachary C. Kennedy, John D. Knight

Publikováno v: Journal of Heterocyclic Chemistry. 46:231-236

A variety of substituted spiro(benzoisothiazole-pyrazoles) have been prepared by the condensation of dilithiated C(α),N-carboalkoxyhydrazones with lithiated methyl 2-(aminosulfonyl)benzoate followed by the cyclization of intermediates with acetic an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8ed7e68c926131458778a098f6500f44
https://doi.org/10.1002/jhet.50

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Preparation of 2-[1-Phenyl-1H-pyrazol-5-yl]benzoic Acids from DilithiatedC(α),N-Phenylhydrazones and Methyl Hydrogen Phthalate

Autor: John D. Knight, Anna C. Dawsey, N. Dwight Camper, Charles F. Beam

Publikováno v: Synthetic Communications. 38:4150-4159

Select C(α),N-phenylhydrazones were dilithiated with excess lithium diisopropylamide to their dianion-type intermediates followed by condensation with methyl hydrogen phthalate. The resulting C-acylated hydrazones were not isolated but acid cyclized

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::65b745012c726db9cdbbe43556d87e4a
https://doi.org/10.1080/00397910802323049

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Copper-catalyzed oxidation of azolines to azoles

Autor: Jianmei Wang, Vincent Li, Anna C. Dawsey, Kimberly C. Hamilton, Travis J. Williams

Publikováno v: Dalton transactions (Cambridge, England : 2003). 41(26)

We report herein convenient, aerobic conditions for the oxidation of thiazolines to thiazoles and data regarding the oxidation mechanism. These reactions feature operationally simple and environmentally benign conditions and proceed in good yield to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5332fdc8ed8c28288d81895bee94d659
https://pubmed.ncbi.nlm.nih.gov/22460353

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ChemInform Abstract: Preparation of 2-[1-Phenyl-1H-pyrazol-5-yl]benzoic Acids from Dilithiated C(α),N-Phenylhydrazones and Methyl Hydrogen Phthalate

Autor: John D. Knight, Anna C. Dawsey, N. Dwight Camper, Charles F. Beam

Publikováno v: ChemInform. 40

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::97dd8f1e6932db3dd4e1b0873264a92c
https://doi.org/10.1002/chin.200918125

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