Zobrazeno 1 - 10 of 143 pro vyhledávání: '"Charles F. Beam"'
1
Preparation of a Select Tautomer of Various Unsymmetrical 1,3,5-Pentanetriones, (1Z,4Z)-1-(Aryl)-1,5-dihydroxy-5-phenylpenta-1,4-dien-3-ones, a 4H-1-benzothiopyran-4-one, and a 2-(2-oxoyl)quinolin-4(1H)-one
Autor: Sarah S. Carlisle, William G. Shuler, Chandra Potter, Ellyn A. Smith, Colin D. McMillan, William T. Pennington, Don VanDerveer, Thomas M. C. McFadden, Clyde R. Metz, Shabree L. Knick, Andrew J. Puciaty, Charles F. Beam, Phillip J. Chase Mabe
Publikováno v: Industrial & Engineering Chemistry Research. 54:7207-7211
Deprotonation of 1-benzoylacetone with excess lithium hexamethyldisilazide (LHMDS) or lithium diisopropylamide (LDA) resulted in a dilithium dianion-type intermediate, which underwent a Claisen-type condensation with substituted aromatic esters or an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::24df36bd87c2866e8d1d6dda91aee559
https://doi.org/10.1021/acs.iecr.5b00975
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2
Preparation of Spiro[Benzopyran-Isoxazoles] from the Condensation–Cyclization of Oxime 1,4-Dianions with Select Coumarins
Autor: William G. Shuler, Marco Gattoni Celli, Colin D. McMillen, Jennifer L. Radke, Clyde R. Metz, William T. Pennington, Charles F. Beam
Publikováno v: Journal of Chemical Crystallography. 44:401-406
A representative spiro[benzopyran-isoxazole], 3′-(3,4-dimethoxyphenyl)-N,N-diethyl-4-methyl-4′H-spiro[2H-1-benzopyran-2,5′-isoxazol]-7-amine 3a, was submitted for single crystal X-ray analysis. It has been prepared by the condensation–cycliza
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c1ae70b362260a5da78736d168f61390
https://doi.org/10.1007/s10870-014-0529-z
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5
The Synthesis and Crystal Structure Determination of Phenyl 2-(3,4-dihydro-1(2H)naphthalenylidine)hydrazinecarboxylate and Phenyl (2,4-dichlorophenyl-methylene)hydrazinecarboxylate
Autor: Don VanDerveer, Amy M. Rhoden Smith, Clyde R. Metz, Chandra Potter, William T. Pennington, Charles F. Beam
Publikováno v: Journal of Chemical Crystallography. 40:541-545
(E)-Phenyl 2-(3,4-dihydro-1(2H)-naphthalenylidine)hydrazinecarboxylate and (E)-phenyl (2,4-dichlorophenylmethylene)hydrazinecarboxylate were prepared by the condensation of 1-tetralone or 2,4-dichlorobenzaldehyde with phenyl hydrazinecarboxylate. Cry
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9af8c8bd5a2459aef61ed1bdbcdc242f
https://doi.org/10.1007/s10870-010-9693-y
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6
Synthesis and Crystal Structure Determination of 3-Phenyl-2-(2-phenylhydrazino)-4H-1-benzothiopyran-4-one
Autor: Stefan J. Pastine, Clyde R. Metz, Charles F. Beam, William T. Pennington, John D. Knight
Publikováno v: Journal of Chemical Crystallography. 40:536-540
A new type of substituted benzothiopyranone, 3-phenyl-2-(2-phenylhydrazino)-4H-1-benzothiopyran-4-one, has been prepared by the condensation-acid cyclization of polylithiated phenylacetic acid phenylhydrazide with lithiated methyl thiosalicylate. Abs
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a3f8baa9f6160c54a613030b570ae4b
https://doi.org/10.1007/s10870-010-9692-z
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8
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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9
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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10
New Strong Base Synthesis of Symmetrical 1,5-Diaryl-1,3,5-pentanetriones from Acetone and Benzoate Esters
Autor: John D. Knight, Clyde R. Metz, Don VanDerveer, Charles F. Beam, William T. Pennington
Publikováno v: Synthetic Communications. 38:2465-2482
Lithium hexamethyldisilazide (LiHMDS) was used to condense substituted benzoate esters with acetone to afford symmetrical 1,5-diaryl-1,3,5-pentanetriones that were isolated, characterized (including a representative X-ray crystallographic analysis),
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3e6f98281758e40188808e3496df6cc4
https://doi.org/10.1080/00397910802138488
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