SCHEDULED MAINTENANCE
Electrochemical oxidative C(sp3)–H azolation of lactams under mild conditions†
Heng
Zhang, 
a
Aiwen
Lei
*a
a
Aiwen
Lei
*a
Abstract
Lactam-containing structural compounds are ubiquitous in drugs and biomolecules. An electrochemical oxidative direct C(sp3)–H azolation of lactams has been reported under metal catalyst-free and external chemical oxidant-free conditions. This electrochemical C(sp3)–H/N–H coupling is characterized by its broad substrate scope of azoles and lactams under mild conditions at room temperature. Mechanistic studies suggested that the reaction possibly involves a radical process. Moreover, the site selectivity can be explained by DFT calculations. More meaningfully, a gram-scale synthesis method of flow electrochemistry was employed to show the scaled-up applicability of this transformation.
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