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Synthesis 2004(15): 2509-2512  
DOI: 10.1055/s-2004-831184
PAPER
© Georg Thieme Verlag Stuttgart · New York

s-Indacene-1,3,5,7(2H,6H)-tetraone (‘Janus dione’) and 1,3-Dioxo-5,6-indanedicarboxylic Acid: Old and New 1,3-Indandione Derivatives

Pnina Kriefa, James Y. Becker*a, Arkady Ellerna, Vladimir Khodorkovsky*a,b, Ojars Neilands (the late)c, Lev Shapiroa
a Department of Chemistry, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
Fax: +972(8)6472188; e-Mail: hodor@bgumail.bgu.ac.il;
b Université de la Méditerranée, UMR CNRS 6114, 13288 Marseille 09, France
c Department of Organic Chemistry, Riga Technical University, Riga 1048, Latvia
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Publication History

Received 14 May 2004
Publication Date:
19 August 2004 (online)

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Abstract

Efficient syntheses, X-ray structures and spectroscopic properties of s-indacene-1,3,5,7(2H,6H)-tetraone (1) and 1,3-dioxo-5,6-indanedicarboxylic acid (2), their precursors and derivatives, are described for the first time.

Key words

arenes - s-indacene - ketones - indandiones - hydrolyses

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