The tautomerism of heteroaromatic compounds with five-membered rings—I
作者:A.J. Boulton、A.R. Katritzky
DOI:10.1016/0040-4020(61)80097-5
日期:1961.1
Infra-red and ultra-violet spectra show that 3,4-dimethyl-5-hydroxyisoxazole exists in aqueous and chloroform solution, and in the solid phase in the OH form; and that 3-phenyl-, 4-bromo-3-phenyl-, and 4-methyl-3-phenyl-isoxazol-5-ones exist as mixtures of the CH and NH forms in solution, the proportion of the NH form increasing with the polarity of the solvent. The basicities of isoxazole and some
Some Synthetic Approaches to Glutamate AMPA Receptor Agonists Based on Isoxazolones
作者:Matthew Cox、Saba Jahangiri、Michael V. Perkins、Rolf H. Prager
DOI:10.1071/ch04041
日期:——
Several approaches to the synthesis of derivatives of the antifungal antibiotic TAN-950A, which is also an agonist of glutamate at hippocampal neurons, are reported. Additions of isoxazolon-4-yl anions to methyleneoxazolidinones were not useful because addition occurred predominantly through N-2. Similarly addition of the isoxazolon-4-yl radicals to model Michael acceptors occurred predominantly through
Trading Symmetry for Stereoinduction in Tetradentate, non‐<i>C</i><sub>2</sub>‐Symmetric Fe(II)‐Complexes for Asymmetric Catalysis
作者:Philipp S. Steinlandt、Marcel Hemming、Xiulan Xie、Sergei I. Ivlev、Eric Meggers
DOI:10.1002/chem.202300267
日期:2023.6.7
A series of C1-symmetric bench-stable stereogenic-at-iron complexes comprising a linear, tetradentate ligand scaffold are introduced. The possibility of lowering the overall symmetry is scrutinized for an enantioselective ring-contraction of isoxazoles to furnish chiral 2H-azirines under open-flask conditions with the products serving as useful building blocks to access α-disubstituted α-amino acid
介绍了一系列包含线性四齿配体支架的 C 1对称稳定型铁立体异构复合物。降低整体对称性的可能性被仔细检查异恶唑的对映选择性缩环以在开放烧瓶条件下提供手性 2 H-氮杂环丙烷,产物用作获得 α-二取代的 α-氨基酸衍生物的有用构建单元。
Chande; Joshi, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1997, vol. 36, # 5, p. 403 - 409
作者:Chande、Joshi
DOI:——
日期:——
Chande, Madhukar S.; Joshi, Ravindra M., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1999, vol. 38, # 2, p. 218 - 220