A Novel and Efficient One-Step Parallel Synthesis of Dibenzopyranones via Suzuki-Miyaura Cross Coupling

摘要

Microwave promoted novel and efficient one-step parallel synthesis of dibenzopyranones and heterocyclic analogues from bromo arylcarboxylates and o-hydroxyarylboronic acids via Suzuki-Miyaura cross coupling reaction is described. Spontaneous lactonization gave dibenzopyranones and heterocyclic analogues bearing electron donating and withdrawing groups on both aromatic rings in good to excellent yields.