Palladium-catalyzed direct ortho C–O bond construction of azoxybenzenes with carboxylic acids and alcohols†
Abstract
A Pd(II) catalyzed C–O bond formation of azoxybenzenes has been developed. An N-atom served as a directing group, as confirmed by the single crystal X-ray diffraction analysis of the palladium complex. The products were obtained in moderate to excellent yields for 29 examples. This protocol features high regioselectivity, wide functional group tolerance and atom economy.
- This article is part of the themed collection: HOT articles in Organic Chemistry Frontiers in 2015