Amino Acid Promoted Ullmann Type Reaction with Low Catalyst Loading via Microwave Technology
作者:K. Uma Maheshwar Reddy、K. Santosh Kumar、A. Panasa Reddy
DOI:10.14233/ajchem.2014.16194
日期:——
This work describes CuBr-catalyzed cross-coupling of sterically hindered phenols with substituted aryl halides and hetero aryl halides under microwave conditions using commercially available amino acids as the reaction promoters and K3PO4 as the base. This protocol shown to tolerate sensitive functional groups like CN, CHO etc., Especially, in case of 3-bromopyridine coupling with substituted phenols supported this letter in track record of the reactivity.