SYNTHESIS OF CYCLOPENTADIENE DERIVATIVES

摘要

A process for preparing cyclopentadiene derivatives having Formula (I) wherein R¹,R², R³, R⁴, R⁵ and R⁶ equal to or different from each other, are hydrogen atoms or hydrocarbon groups comprising the steps of reacting a substituted or unsubstituted indanon with a base and then with a substituted or unsubstituted haloaceton and treating the obtained product with the Lawesson's reagent.