A transition metal free base catalyzed approach for C–N bond formation via C–C and C![[double bond, length as m-dash]](http://www.rsc.org/images/entities/char_e001.gif)
C bond activation has been developed. The N-arylureas reacted smoothly with 1,3-dicarbonyls and α,β-unsaturated ketones to furnish the corresponding amides and imines respectively in moderate to excellent yields.
![Graphical abstract: Base-catalyzed synthesis of amides and imines via C–C and C [[double bond, length as m-dash]] C bond cleavage](http://hg.y866.cn/compound/lib/scimg/usr/1/C4RA14234A.jpg)
