Synthesis 1990; 1990(7): 579-582
DOI: 10.1055/s-1990-26946
paper
© Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journal, including all individual contributions and illustrations published therein, is legally protected by copyright for the duration of the copyright period. Any use, exploitation or commercialization outside the narrow limits set by copyright legislation, without the publisher's consent, is illegal and liable to criminal prosecution. This applies in particular to photostat reproduction, copying, cyclostyling, mimeographing or duplication of any kind, translating, preparation of microfilms, and electronic data processing and storage.

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
Further Information

Publication History

Publication Date:
17 September 2002 (online)

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.