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