Abstract
AbstractCopper‐mediated cyanation of aryl C—H bond with removable bidenate auxiliary as a directing group has been developed, in which green and cheap acetonitrile is used as the “CN” source. By switching the reaction conditions, the C—H cyanated products and N‐Ar‐phthalimides can be provided in acceptable yields with high chemoselectivity, respectively. The use of quaternary ammonium salt is essential for cyanation reaction.
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