Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
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63/00
Compounds having carboxyl groups bound to a carbon atoms of six-membered aromatic rings
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C07C63/337
with carboxyl groups bound to condensed ring systems
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C07C63/42
containing three or more; condensed; rings
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C07C63/44
containing one carboxyl group
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C07C63/44

Method of preparing fused ring indeno compounds
09630902 · 2017-04-25 · ·

The present invention relates to methods of preparing fused ring indeno compounds that involves reacting together a dienophile and a lactone compound, in the presence of a catalyst, and a carboxylic acid anhydride. With some embodiments, the fused ring indeno compound is represented by the following Formula (I-A), the dienophile is represented by the following Formula (II-A), and the lactone compound is represented by the following Formula (III-A): ##STR00001##

Method of preparing fused ring indeno compounds
09630902 · 2017-04-25 · ·

The present invention relates to methods of preparing fused ring indeno compounds that involves reacting together a dienophile and a lactone compound, in the presence of a catalyst, and a carboxylic acid anhydride. With some embodiments, the fused ring indeno compound is represented by the following Formula (I-A), the dienophile is represented by the following Formula (II-A), and the lactone compound is represented by the following Formula (III-A): ##STR00001##