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Journal articles on the topic 'Oxazol-5-(4H)-ones'

Author: Grafiati

Published: 10 September 2021

Last updated: 29 July 2025

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1

Zhao, Hong-Wu, Juan Du, Jia-Ming Guo, et al. "Formal [5+2] cycloaddition of vinylethylene carbonates to oxazol-5-(4H)-ones for the synthesis of 3,4-dihydrooxepin-2(7H)-ones." Chemical Communications 54, no. 66 (2018): 9178–81. http://dx.doi.org/10.1039/c8cc04584d.

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2

Fisk, Jason S., Robert A. Mosey, and Jetze J. Tepe. "The diverse chemistry of oxazol-5-(4H)-ones." Chemical Society Reviews 36, no. 9 (2007): 1432. http://dx.doi.org/10.1039/b511113g.

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3

Goldfogel, Matthew J., and Simon J. Meek. "Diastereoselective synthesis of vicinal tertiary and N-substituted quaternary stereogenic centers by catalytic hydroalkylation of dienes." Chemical Science 7, no. 7 (2016): 4079–84. http://dx.doi.org/10.1039/c5sc04908c.

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4

Bowden, Keith, Alexander Perjéssy, Ján Benko, et al. "Reactions of Carbonyl Compounds in Basic Solutions. Part 351: The Alkaline Hydrolysis and Reactivity – Structure – Spectra Correlations of (Z)-4-(Substituted Benzylidene)-2-Phenyl-4H-Oxazol-5-Ones." Journal of Chemical Research 2002, no. 7 (2002): 309–10. http://dx.doi.org/10.3184/030823402103172266.

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The kinetics of the alkaline hydrolysis and the configuration, conformation and electronic structure were studied using IR, NMR spectroscopy, X-ray analysis and AM1 theoretical calculations for a series of (Z)-4-(substituted benzylidene)-2-phenyl-4H-oxazol-5-ones (1) and compared with analogous results reported for (E)-4-benzylidene-2-phenyl-4H-furan-5-ones (5) and related compounds.

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5

Tien Nguyen, Cong, Dao Thi Hong Dinh, Thin Van Nguyen, Giang Duc Le, and Hien Cao Nguyen. "Synthesis and Antimicrobial Activity of Some 1-arylideneamino-4-(4-chlorobenzylidene)-2-methyl- 1H-imidazolin-5(4H)-one Compounds." Oriental Journal of Chemistry 35, no. 2 (2019): 822–28. http://dx.doi.org/10.13005/ojc/350245.

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4-Chlorobenzylidene-2-methyl-(4H)-oxazol-5-one, which were prepared from 4-chlorobenzaldehyde and acetylglycine in reaction with hydrazine hydrate in ethanol gave 1-amino-4-(4-chlorobenzylidene)-2-methyl-1H-imidazolin-5(4H)-one. However, treatment of 4-chlorobenzylidene-2-methyl-(4H)-oxazol-5-one with hydrazine hydrate in pyridine yielded 3-(4-chlorophenyl)propanohydrazide. Reaction of 1-amino-4-(4-chlorobenzylidene)-2-methyl-1H-imidazolin-5(4H)-one with aromatic aldehydes gave eight corresponding Schiff’s bases namely 1-arylideneamino-4-(4-chlorobenzylidene)-2-methyl-1H-imidazolin-5(4H)-ones.

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6

Rosca, Elena Valentina, Theodora Venera Apostol, Constantin Draghici, et al. "Synthesis, characterization and Cytotoxicity Evaluation of New Compounds from Oxazol-5(4H)-Ones and 1,2,4-Triazin-6(5H)-Ones Classes." Revista de Chimie 70, no. 11 (2019): 3769–74. http://dx.doi.org/10.37358/rc.19.11.7644.

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This paper presents the synthesis of new heterocyclic compounds from oxazoles and triazinones classes. Some 2-(4-(4-X-phenylsulfonyl)benzamido)acetic acids were condensed with 4-iodobenzaldehyde in presence of acetic anhydride and sodium acetate, when the new corresponding unsaturated oxazol-5(4H)-one were obtained. Through the reaction of these oxazol-5(4H)-ones with phenylhydrazine, in presence of the acetic acid and sodium acetate, the new heterocyclic compounds from 1,2,4-triazin-6(5H)-ones class were obtained. The structures of synthesized compounds have been confirmed by spectral methods

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7

Rosca, Elena Valentina, Theodora Venera Apostol, Constantin Draghici, et al. "Synthesis, characterization and Cytotoxicity Evaluation of New Compounds from Oxazol-5(4H)-Ones and 1,2,4-Triazin-6(5H)-Ones Classes." Revista de Chimie 70, no. 11 (2019): 3769–74. http://dx.doi.org/10.37358/rc.70.19.11.7644.

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This paper presents the synthesis of new heterocyclic compounds from oxazoles and triazinones classes. Some 2-(4-(4-X-phenylsulfonyl)benzamido)acetic acids were condensed with 4-iodobenzaldehyde in presence of acetic anhydride and sodium acetate, when the new corresponding unsaturated oxazol-5(4H)-one were obtained. Through the reaction of these oxazol-5(4H)-ones with phenylhydrazine, in presence of the acetic acid and sodium acetate, the new heterocyclic compounds from 1,2,4-triazin-6(5H)-ones class were obtained. The structures of synthesized compounds have been confirmed by spectral methods

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8

Zhang, Jing, Man Liu, Chao Li, Yan-Jun Xu, and Lin Dong. "Synthesis of 2,3,4-trisubstituted pyrrole derivatives via [3 + 2] cyclization of activated methylene isocyanides with 4-(arylidene)-2-substituted oxazol-5(4H)-ones." Organic Chemistry Frontiers 7, no. 2 (2020): 420–24. http://dx.doi.org/10.1039/c9qo01044k.

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An efficient base-catalyzed [3 + 2] cyclization between isocyanides and 4-(arylidene)-2-substituted oxazol-5(4H)-ones has been successfully developed to form 2,3,4-trisubstituted and 2,2,3,4-tetrasubstituted pyrrole derivatives.

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9

Topuzyan, V. O., and A. A. Hovannisyan. "Reactions of Oxazol-5(4H)-ones Involving Organosilicone Reagents (A Review)." Russian Journal of Organic Chemistry 60, no. 5 (2024): 753–88. http://dx.doi.org/10.1134/s1070428024050014.

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10

Arzyamova, Ekaterina M., and Alevtina Yu Egorova. "Thionation of 4-((4-oxo-4H-chromen-3-yl)methylene)-2-phenyloxazol-5(4H)-one using the LAWESSON’S reagent." Izvestiya of Saratov University. Chemistry. Biology. Ecology 24, no. 2 (2024): 122–28. http://dx.doi.org/10.18500/1816-9775-2024-24-2-122-128.

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Analysis of periodicals has showed that there is no information on the behavior of hybrid heterocyclic systems containing several pharmacophore fragments based on oxazol-5(4H)-ones and chromen-4(4H)-ones in reactions with thionizing reagents under various conditions. The interaction of 4-((4-oxo-4H-chromen-3-yl)methylene)-2-phenyloxazol-5(4H)-one with Lawesson’s reagent (LR) (2,4-bis-[pmethoxyphenyl]) has been studied for the first time – 1,3- dithiaphosphetane-2,4-disulfide) under conditions of thermal activation of the reaction mixture and the use of a closed reactor in the environment of no

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11

Apostol, Theodora-Venera, Mariana Carmen Chifiriuc, Constantin Draghici, et al. "Synthesis, In Silico and In Vitro Evaluation of Antimicrobial and Toxicity Features of New 4-[(4-Chlorophenyl)sulfonyl]benzoic Acid Derivatives." Molecules 26, no. 16 (2021): 5107. http://dx.doi.org/10.3390/molecules26165107.

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The multi-step synthesis, physico-chemical characterization, and biological activity of novel valine-derived compounds, i.e., N-acyl-α-amino acids, 1,3-oxazol-5(4H)-ones, N-acyl-α-amino ketones, and 1,3-oxazoles derivatives, bearing a 4-[(4-chlorophenyl)sulfonyl]phenyl moiety are reported here. The structures of the newly synthesized compounds were confirmed by spectral (UV-Vis, FT-IR, MS, 1H- and 13C-NMR) data and elemental analysis results, and their purity was determined by RP-HPLC. The new compounds were assessed for their antimicrobial activity and toxicity to aquatic crustacean Daphnia m

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12

Piperno, Anna, Angela Scala, Francesco Risitano, and Giovanni Grassi. "Oxazol-5-(4H)-Ones. Part 1. Synthesis and Reactivity as 1,3-dipoles." Current Organic Chemistry 18, no. 21 (2014): 2691–710. http://dx.doi.org/10.2174/1385272819666140915213429.

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13

Zhao, Hong-Wu, Yue-Yang Liu, Yu-Di Zhao, et al. "[3 + 2] Cycloaddition of Oxazol-5-(4H)-ones with Nitrones for Diastereoselective Synthesis of Isoxazolidin-5-ones." Organic Letters 19, no. 1 (2016): 26–29. http://dx.doi.org/10.1021/acs.orglett.6b03206.

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14

Apostol, Theodora-Venera, Mariana Carmen Chifiriuc, George Mihai Nitulescu, et al. "In Silico and In Vitro Assessment of Antimicrobial and Antibiofilm Activity of Some 1,3-Oxazole-Based Compounds and Their Isosteric Analogues." Applied Sciences 12, no. 11 (2022): 5571. http://dx.doi.org/10.3390/app12115571.

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In this paper, we report on the antimicrobial activity assessment of 49 compounds previously synthesized as derivatives of alanine or phenylalanine that incorporate a 4-(4-X-phenylsulfonyl)phenyl fragment (X = H, Cl, or Br), namely 21 acyclic compounds (6 × N-acyl-α-amino acids, 1 × N-acyl-α-amino acid ester, and 14 × N-acyl-α-amino ketones) and 28 pentatomic heterocycles from the oxazole-based compound class (6 × 4H-1,3-oxazol-5-ones, 16 × 5-aryl-1,3-oxazoles, and 6 × ethyl 1,3-oxazol-5-yl carbonates). Both in silico and in vitro qualitative and quantitative assays were used to investigate th

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15

Gelmi, M. Luisa, Donate Pocar, Monica Viziano, Riccardo Destro, and Felicita Merati. "Oxazol-5(4H)-ones. Part 7. New synthesis of oxazolo[5,4-b]pyridines." Journal of the Chemical Society, Perkin Transactions 1, no. 6 (1992): 701. http://dx.doi.org/10.1039/p19920000701.

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16

Tepe, J., N. Hewlett, and C. Hupp. "Reactivity of Oxazol-5-(4H)-ones and Their Application toward Natural Product Synthesis." Synthesis 2009, no. 17 (2009): 2825–39. http://dx.doi.org/10.1055/s-0029-1216924.

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17

Mosey, Robert A., Jason S. Fisk та Jetze J. Tepe. "Stereoselective syntheses of quaternary substituted α-amino acids using oxazol-5-(4H)-ones". Tetrahedron: Asymmetry 19, № 24 (2008): 2755–62. http://dx.doi.org/10.1016/j.tetasy.2008.11.033.

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18

Zhao, Hong-Wu, Yue-Yang Liu, Yu-Di Zhao, et al. "Base-Catalyzed Formal [3+2] Cycloaddition of Diazooxindoles with Oxazol-5-(4H )-ones." European Journal of Organic Chemistry 2018, no. 3 (2018): 341–46. http://dx.doi.org/10.1002/ejoc.201701496.

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19

Pinheiro, Danielle L. J., Eloah P. Ávila, and Giovanni W. Amarante. "A Practicable Synthesis of Oxazol-5(4H)-ones Through Hydrogenation: Scope and Applications." ChemistrySelect 1, no. 11 (2016): 2960–62. http://dx.doi.org/10.1002/slct.201600639.

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20

Apostol, Theodora-Venera, Mariana Carmen Chifiriuc, Laura-Ileana Socea, et al. "Synthesis, Characterization, and Biological Evaluation of Novel N-{4-[(4-Bromophenyl)sulfonyl]benzoyl}-L-valine Derivatives." Processes 10, no. 9 (2022): 1800. http://dx.doi.org/10.3390/pr10091800.

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In this article, we present the design and synthesis of novel compounds, containing in their molecules an L-valine residue and a 4-[(4-bromophenyl)sulfonyl]phenyl moiety, which belong to N-acyl-α-amino acids, 4H-1,3-oxazol-5-ones, 2-acylamino ketones, and 1,3-oxazoles chemotypes. The synthesized compounds were characterized through elemental analysis, MS, NMR, UV/VIS, and FTIR spectroscopic techniques, the data obtained are in accordance with the assigned structures. Their purities were verified by reversed-phase HPLC. The new compounds were tested for antimicrobial action against bacterial an

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21

Prokopenko, V. M., S. G. Pil’o, V. S. Brovarets, A. N. Vasilenko, and B. S. Drach. "Reaction of 2-aryl-4-dichloromethylidene-1,3-oxazol-5(4H)-ones with 2-aminopyridine." Russian Journal of General Chemistry 80, no. 1 (2010): 121–26. http://dx.doi.org/10.1134/s1070363210010160.

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22

Fritschi, Stephan P., Anthony Linden та Heinz Heimgartner. "Synthesis of Macrocyclic LactonesviaRing Transformation of 4-(ω-Hydroxyalkyl)-1,3-oxazol-5(4H)-ones". Helvetica Chimica Acta 99, № 7 (2016): 523–38. http://dx.doi.org/10.1002/hlca.201600023.

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23

Barbuceanu, Stefania-Felicia, Elena-Valentina Rosca, Theodora-Venera Apostol, et al. "New Heterocyclic Compounds from Oxazol-5(4H)-one and 1,2,4-Triazin-6(5H)-one Classes: Synthesis, Characterization and Toxicity Evaluation." Molecules 28, no. 12 (2023): 4834. http://dx.doi.org/10.3390/molecules28124834.

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This paper describes the synthesis of new heterocycles from oxazol-5(4H)-one and 1,2,4-triazin-6(5H)-one classes containing a phenyl-/4-bromophenylsulfonylphenyl moiety. The oxazol-5(4H)-ones were obtained via condensation of 2-(4-(4-X-phenylsulfonyl)benzamido)acetic acids with benzaldehyde/4-fluorobenzaldehyde in acetic anhydride and in the presence of sodium acetate. The reaction of oxazolones with phenylhydrazine, in acetic acid and sodium acetate, yielded the corresponding 1,2,4-triazin-6(5H)-ones. The structures of the compounds were confirmed using spectral (FT-IR, 1H-NMR, 13C-NMR, MS) a

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24

Shablykin, Oleg V., Vladimir M. Prokopenko, and Vladimir S. Brovarets. "Interaction of 2-aryl-4-(dichloromethylidene)-1,3-oxazol-5(4H)-ones with methyl 2-isocyanoacetate." Chemistry of Heterocyclic Compounds 52, no. 6 (2016): 424–26. http://dx.doi.org/10.1007/s10593-016-1905-8.

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25

Gilbert, Adam M., Matthew Kirisits, Patrick Toy, et al. "Anthranilate 4H-oxazol-5-ones: novel small molecule antibacterial acyl carrier protein synthase (AcpS) inhibitors." Bioorganic & Medicinal Chemistry Letters 14, no. 1 (2004): 37–41. http://dx.doi.org/10.1016/j.bmcl.2003.10.032.

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26

Heimgartner, Heinz, Franziska S. Arnhold, Stephan P. Fritschi, Kristian N. Koch, J. E. Florian Magirius, and Anthony Linden. "1,3-Oxazol-5(4H)-ones as intermediates in the formation of macrolides, cyclodepsipeptides and cyclopeptides." Journal of Heterocyclic Chemistry 36, no. 6 (1999): 1539–47. http://dx.doi.org/10.1002/jhet.5570360614.

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27

GELMI, M. L., D. POCAR, M. VIZIANO, R. DESTRO, and F. MERATI. "ChemInform Abstract: Oxazol-5(4H)-ones. Part 7. New Synthesis of Oxazolo(5,4-b)pyridines." ChemInform 23, no. 29 (2010): no. http://dx.doi.org/10.1002/chin.199229181.

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28

GaOpen Chemistry 3, no. 4 (2005): 622–46. http://dx.doi.org/10.2478/bf02475192.

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AbstractThe reactions of substituted furo[3,2-b]pyrrole-5-carboxhydrazides 1 with 5-arylfuran-2-carboxaldehydes 2, 4,5-disubstituted furan-2-carboxaldehydes 3 and thiophene-2-carboxaldehyde 4 has been studied. The advantage of microwave irradiation on some of these reactions was reflected in the reduced reaction time and increased yields. Reactions of 1 with 4-substituted 1,3-oxazol-5(4H)-ones 11 led to diacylhydrazines 13 or to imidazole derivatives 14 depending on the temperature. 1,2,4-Triazole-3-thione 17 was synthesized by two-step reaction of 1 with phenylisothiocyanate and subsequent ba

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29

Fujita, Kazuki, Masataka Miura, Yasuhiro Funahashi, Tsubasa Hatanaka, and Shuichi Nakamura. "Enantioselective Reaction of 2H-Azirines with Oxazol-5-(4H)-ones Catalyzed by Cinchona Alkaloid Sulfonamide Catalysts." Organic Letters 23, no. 6 (2021): 2104–8. http://dx.doi.org/10.1021/acs.orglett.1c00259.

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30

Metrano, Anthony J., та Scott J. Miller. "Peptide-Catalyzed Conversion of Racemic Oxazol-5(4H)-ones into Enantiomerically Enriched α-Amino Acid Derivatives". Journal of Organic Chemistry 79, № 4 (2014): 1542–54. http://dx.doi.org/10.1021/jo402828f.

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31

Fujita, Hikaru, and Munetaka Kunishima. "ChemInform Abstract: One-Pot Preparation of Oxazol-5(4H)-ones from Amino Acids in Aqueous Solvents." ChemInform 43, no. 48 (2012): no. http://dx.doi.org/10.1002/chin.201248125.

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32

Barskaia, E. S., A. A. Beloglazkina, B. Wobith, et al. "Synthesis and biotests of 2-aryl-5-arylmethylidene-substituted 1,3-oxazol-5(4H)-ones and N-methyl-3,5-dihydro-4H-imidazol-4-ones as combretastatin A-4 analogs." Russian Chemical Bulletin 64, no. 7 (2015): 1560–63. http://dx.doi.org/10.1007/s11172-015-1041-0.

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33

Grassi, G., F. Foti, F. Risitano, M. Cordaro, F. Nicolò, and G. Bruno. "Synthesis, structural and theoretical studies of new ring-chain adducts of 5(4H)-oxazol-5-ones and aldehyde methylhydrazones." Journal of Molecular Structure 698, no. 1-3 (2004): 81–86. http://dx.doi.org/10.1016/j.molstruc.2004.04.025.

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34

Bărbuceanu, Florica, Elena-Valentina Roşca, Theodora-Venera Apostol, et al. "New 2-(4-(4-bromophenylsulfonyl)phenyl)-4-arylidene-oxazol-5(4H)-ones: analgesic activity and histopathological assessment." Romanian Journal of Morphology and Embryology 61, no. 2 (2020): 493–502. http://dx.doi.org/10.47162/rjme.61.2.19.

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35

ROȘCA, ELENA VALENTINA. "IN SILICO AND EXPERIMENTAL STUDIES FOR THE DEVELOPMENT OF NOVEL OXAZOL-5(4H)-ONES WITH PHARMACOLOGICAL POTENTIAL." FARMACIA 68, no. 3 (2020): 453–62. http://dx.doi.org/10.31925/farmacia.2020.3.10.

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36

Heimgartner, Heinz, Franziska S. Arnhold, Stephan P. Fritschi, Kristian N. Koch, J. E. Florian Magirius, and Anthony Linden. "ChemInform Abstract: 1,3-Oxazol-5(4H)-ones as Intermediates in the Formation of Macrolides, Cyclodepsipeptides, and Cyclopeptides." ChemInform 31, no. 19 (2010): no. http://dx.doi.org/10.1002/chin.200019296.

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37

Chebanov, V. A., S. M. Desenko, S. A. Kuzmenko, V. A. Borovskoy, V. I. Musatov, and Yu V. Sadchikova. "Reactions of 2-aryl-4-arylidene-4H-oxazol-5-ones with 3-amino-1,2,4-triazole, 5-aminotetrazole, and 2-aminobenzimidazole." Russian Chemical Bulletin 53, no. 12 (2004): 2845–49. http://dx.doi.org/10.1007/s11172-005-0200-0.

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38

Palcut, Marián, Ján Benko, Norbert MÜller, Ol‘ga Hritzová, Ol‘ga Vollárová, and Gaugik S. Melikian. "Base-catalysed hydrolysis and reactivity-spectra correlations of (Z)-4-benzylidene-2-(substituted phenyl)oxazol-5(4H)-ones." Journal of Chemical Research 2004, no. 10 (2004): 649–53. http://dx.doi.org/10.3184/0308234043431681.

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39

Suda, Kohji, Fumio Hino, and Chino Yijima. "An efficient transformation of N-acyl-.ALPHA.-amino acids into diacylamines via 2,4-disubstituted oxazol-5(4H)-ones." CHEMICAL & PHARMACEUTICAL BULLETIN 33, no. 2 (1985): 882–85. http://dx.doi.org/10.1248/cpb.33.882.

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40

Wang, Jian, Ling Zhong, Shi Tang, et al. "Palladium-Catalyzed Divergent Imidoylative Cyclization of Multifunctionalized Isocyanides: Tunable Access to Oxazol-5(4H)-ones and Cyclic Ketoimines." Journal of Organic Chemistry 85, no. 11 (2020): 7297–308. http://dx.doi.org/10.1021/acs.joc.0c00672.

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41

HASSAN, A. A., K. U. SADEK, and N. K. MOHAMED. "ChemInform Abstract: A Novel Reaction of Tetracyanoethene with 4-Arylmethylidene-2-phenyl-1, 3-oxazol-5(4H)-ones." ChemInform 26, no. 32 (2010): no. http://dx.doi.org/10.1002/chin.199532073.

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42

Metrano, Anthony J., та Scott J. Miller. "ChemInform Abstract: Peptide-Catalyzed Conversion of Racemic Oxazol-5(4H)-ones into Enantiomerically Enriched α-Amino Acid Derivatives." ChemInform 45, № 31 (2014): no. http://dx.doi.org/10.1002/chin.201431085.

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43

Palcut, Marián. "Spectral characterisation of oxazol-5(4H)-ones containing a furan and/or benzene ring in conjugation with the azlactone system." Journal of Chemical Research 2005, no. 12 (2005): 766–71. http://dx.doi.org/10.3184/030823405775147031.

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44

Tarí, Silvia, Angel Avila, Rafael Chinchilla, and Carmen Nájera. "Enantioselective quaternization of 4-substituted oxazol-5-(4H)-ones using recoverable Cinchona-derived dimeric ammonium salts as phase-transfer organocatalysts." Tetrahedron: Asymmetry 23, no. 2 (2012): 176–80. http://dx.doi.org/10.1016/j.tetasy.2012.01.012.

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45

Bevinakatti, Hanamanthsa S., Ravindra V. Newadkar, and Ankur A. Banerji. "Lipase-catalysed enantioselective ring-opening of oxazol-5(4H)-ones coupled with partial in situ racemisation of the less reactive isomer." Journal of the Chemical Society, Chemical Communications, no. 16 (1990): 1091. http://dx.doi.org/10.1039/c39900001091.

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46

Cheng, Dao-Juan, Rui-Qi Li, Xing-Shuai Zhang, Lin Zhao, Tao Wang, and You-Dong Shao. "Diastereoselective Synthesis of Functionalized Indoline N ,O -Aminals: Unexpected Water-Involved Cascade Reaction of 3H -Indoles and Oxazol-5-(4H )ones." European Journal of Organic Chemistry 2020, no. 4 (2020): 496–500. http://dx.doi.org/10.1002/ejoc.201901774.

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47

Apostol, Theodora-Venera, Stefania-Felicia Barbuceanu, Octavian Tudorel Olaru, et al. "Synthesis, characterization and Cytotoxicity Evaluation of New Compounds from Oxazol-5(4H)-ones and Oxazoles Class Containing 4-(4-Bromophenylsulfonyl)phenyl Moiety." Revista de Chimie 70, no. 4 (2019): 1099–107. http://dx.doi.org/10.37358/rc.19.4.7073.

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Steiger N-acylation of a-alanine with 4-(4-bromophenylsulfonyl)benzoyl chloride led to 2-[4-(4-bromophenylsulfonyl)benzamido]propanoic acid. This compound underwent intramolecular cyclization in the presence of N-methylmorpholine and ethyl chloroformate or acetic anhydride to the corresponding saturated azlactone. Then acylaminoacylation of dry aromatic hydrocarbons with 2-[4-(4-bromophenylsulfonyl)phenyl]-4-methyloxazol-5(4H)-one or 2-[4-(4-bromophenylsulfonyl) benzamido ]propanoyl chloride in the presence of anhydrous aluminum chloride led to corresponding a-acylamino ketones. These new inte

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48

Tari, Silvia, Angel Avila, Rafael Chinchilla, and Carmen Najera. "ChemInform Abstract: Enantioselective Quaternization of 4-Substituted Oxazol-5-(4H)-ones Using Recoverable Cinchona-Derived Dimeric Ammonium Salts as Phase-Transfer Organocatalysts." ChemInform 43, no. 35 (2012): no. http://dx.doi.org/10.1002/chin.201235133.

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Hamood Saleh Azzam, Sadeq, G. T. Chandrappa, and Mohamed Afzal Pasha. "Sonochemical Hot-spot Assisted One-pot Synthesis of 4-arylmethylidene - 2-phenyl-4H-oxazol-5-ones Using Nano-MgO as an Efficient Catalyst." Letters in Organic Chemistry 10, no. 4 (2013): 283–90. http://dx.doi.org/10.2174/1570178611310040010.

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BEVINAKATTI, H., R. V. NEWADKAR, and A. A. BANERJI. "ChemInform Abstract: Lipase-Catalyzed Enantioselective Ring-Opening of Oxazol-5(4H)-ones Coupled with Partial in situ Racemization of the Less Reactive Isomer." ChemInform 22, no. 6 (2010): no. http://dx.doi.org/10.1002/chin.199106060.

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