Ultrasonic Irradiation of the Ullmann Condensation: Application to the Preparation of Dioxolo, Dioxino, Cyclopent, and Imidazolo Anthranilic Acid Derivatives.

Ultrasonic irradiation of the ullmann co

Ultrasonic irradiation of the ullmann condensation: Application to the preparation of dioxolo, dioxino, cyclopent, and imidazolo anthranilic acid derivatives

✍ Maxime Robin; Valérie Pique; Robert Faure; Jean-Pierre Galy 📂 Article 📅 2002 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 33 KB

## Abstract The synthesis of __N__‐aryl anthranilic acid derivatives bearing dioxolo, dioxino, cyclopent, and imidazolo supplementary ring systems is reported. The Ullmann‐Goldberg condensation of the __N__‐aryl anthranilic acid is improved in yield and reaction time, compared to conventional heati