NDLI: Synthesen von Heterocyclen, CC Reaktionen mit cyclischen Oxalylverbindungen, XVIII Zur Reaktion von 4-Benzoyl-5-phenyl-2,3-dihydrofuran-2,3-dion mit Η-aktiven Nucleophilen. / Syntheses of Heterocycles, CC Reactions of Cyclic Oxalyl Compounds, XVIII The Reaction of 4-Benzoyl-5-phenyl-2,3-dihydrofuran-2,3-dione with Η-active Nucleophiles

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Synthesen von Heterocyclen, CC Reaktionen mit cyclischen Oxalylverbindungen, XVIII Zur Reaktion von 4-Benzoyl-5-phenyl-2,3-dihydrofuran-2,3-dion mit Η-aktiven Nucleophilen. / Syntheses of Heterocycles, CC Reactions of Cyclic Oxalyl Compounds, XVIII The Reaction of 4-Benzoyl-5-phenyl-2,3-dihydrofuran-2,3-dione with Η-active Nucleophiles

Content Provider	Scilit
Author	Kollenz, Gert Ziegler, Erich Ott, Walter Igel, Herwig
Copyright Year	1976
Abstract	Hydrolysis of 4-Benzoyl-5-phenyl-2,3-dihydrofuran-2,3-dione (1) in water (ethanol) gives dibenzoylmethane and oxalic acid (ethyl ester). 1 reacts with aniline or p-toluidine yielding the 2-pyrrolones (2), which on the other hand are synthesized by addition of the corresponding anilines to the pyrrol-2,3-diones (8). 3 a adds methanol to give the 2-pyrrolone (4), which with aniline can be converted into 2 a. 2 a, b show fragmentation to oxalic acid anilides by heating (2 b) or treating with diazomethane (2 a). The reaction of 1 with p-nitroaniline leads via the furanone-derivative 6 to oxalic acid-di-p-nitroanilide. 1 and N-methylaniline combine to acrylic acid-N-methylanilide (7), which by heating gives the dibenzoyl acetic acid-N-methylanilide
Related Links	http://www.degruyter.com/downloadpdf/j/znb.1976.31.issue-11/znb-1976-1116/znb-1976-1116.xml
Ending Page	1514
Page Count	4
Starting Page	1511
ISSN	09320776
e-ISSN	18657117
DOI	10.1515/znb-1976-1116
Journal	Zeitschrift für Naturforschung B
Issue Number	11
Volume Number	31
Language	English
Publisher	Walter de Gruyter GmbH
Publisher Date	1976-11-01
Access Restriction	Open
Subject Keyword	Zeitschrift Für Naturforschung B Organic Chemistry Dihydrofuran Phenyl Benzoyl Dione Methylanilide Mit Xviii Pyrrolones Journal: Zeitschrift für Naturforschung B, Issue- 3
Content Type	Text
Resource Type	Article
Subject	Chemistry

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