| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a new dicarbonyl compound which has an s-dihydro indacene skeleton, an intermediate thereof, and a method for producing the same. <P>SOLUTION: The new dicarbonyl compound is a dicarbonyl compound represented by formula (1-1) or formula (1-2), or 1,2,3,5,6,7-hexahydro-s-indacene-2,6-dicarboxylic acid dimethyl ester (in formulas, R<SP POS="POST">1</SP>and R<SP POS="POST">2</SP>mutually independently represent a hydrogen atom or an alkyl group optionally having a substituent). <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
