METHOD OF PREPARING FUSED RING INDENO COMPOUNDS

摘要

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).