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

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

References

• 1a Gvishi R. Berkovic G. Kotler Z. Krief P. Becker JY. Khodorkovsky V. Proc. SPIE Int. Soc. Opt. Eng.  2001,  4262:  340 
• 1b Gvishi R. Berkovic G. Kotler Z. Krief P. Sigalov M. Shapiro L. Khodorkovsky V. Proc. SPIE Int. Soc. Opt. Eng.  2003,  5036:  437 
• 1c Gvishi R. Berkovic G. Kotler Z. Krief P. Shapiro L. Klug JT. Skorka J. Khodorkovsky V. Proc. SPIE Int. Soc. Opt. Eng.  2003,  5211:  82 
• 2a Ephraim F. Ber. Dtsch. Chem. Ges.  1901,  34:  2779 
• 2b Braun J. Lemke G. Ber. Dtsch. Chem. Ges.  1924,  57:  681 
• 3 Neilands O. Vavere M. Zh. Obzsh. Khim.  1963,  33:  1044 ; Chem. Abstr. 1963, 59, 7441e
• 4 Schwarz H. Mazor R. Khodorkovsky V. Shapiro L. Klug JT. Kovalev E. Meshulam G. Berkovic G. Kotler Z. Efrima S. J. Phys. Chem. B  2001,  105:  5914 
• 5 Moylan CR. Twieg RJ. Lee VY. Swanson SA. Betterton KM. Miller RD. J. Am. Chem. Soc.  1993,  115:  12599