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Synthesis 1990; 1990(7): 579-582
DOI: 10.1055/s-1990-26946
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Oxokohlenstoffe und verwandte Verbindungen; 15. Mitteilung.1Meerwein-Arylierung von Semiquadratsäure und Semiquadratsäureamiden. Eine allgemeine Darstellungsmethode von 3-Aryl-4-hydroxy- und 3-Amino-4-aryl-3-cyclobuten-1,2-dionen

Arthur H. Schmidt* , Günter Schmitt, Heike Diedrich
  • *Abteilung für Organische Chemie und Biochemie, Fachhochschule Fresenius, Kapellenstraße 11-15, D-6200 Wiesbaden, Federal Republic of Germany
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Publikationsdatum:
17. September 2002 (online)

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Oxocarbons and Related Compounds; Part 15. Meerwein-Arylation of Semisquaric Acid and Semisquaric Amides. A General Method for the Preparation of 3-Aryl-4-hydroxy- and 3-Amino-4-aryl-3-cyclobutene-1,2-diones Meerwein-arylation of semisquaric acid (1) and semisquaric amides 4 has been found to afford general routes to 3-aryl-4-hydroxy-3-cyclobutene-1,2-diones 3 and 3-amino-4-aryl-3-cyclobutene-1,2-diones 5, respectively.

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