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Ultrasonic irradiation of the ullmann condensation: Application to the preparation of dioxolo, dioxino, cyclopent, and imidazolo anthranilic acid derivatives
Author(s) -
Robin Maxime,
Pique Valérie,
Faure Robert,
Galy JeanPierre
Publication year - 2002
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570390537
Subject(s) - anthranilic acid , chemistry , ullmann reaction , yield (engineering) , condensation , aryl , ring (chemistry) , organic chemistry , ultrasonic sensor , combinatorial chemistry , catalysis , thermodynamics , acoustics , physics , alkyl
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 heating; by ultrasonic irradiation.