Abstract
AbstractThe cross‐dehydrogenative coupling (CDC) reaction of β‐ketoesters with quinoxalin‐2(1H)‐one derivatives has been successfully performed by using a readily available Cu salt as the catalyst in moderate to excellent yields under mild conditions. Owing to the characteristic of handy operation and good functional group tolerance, this protocol affords a convenient access to α‐quinoxalinone‐substituted β‐ketoesters. Preliminary mechanistic investigations show this transformation possibly underwent an unusual ionic pathway.
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