3-Benzoyl-4-hydroxyisochromen-1-one Derivatives, Their Synthesis and Synthetic Application

The Preparation of Various New Heterocyclic Compounds via Cyclization of Substituted Derivatives of Phenacyl Esters of Hydrazonoacetic Acid

“…Nevertheless, this method was successfully used for the preparation of isocoumarins 15 from phenacyl phthalates 16 ( Figure 8), whereas other methods failed. 18…”