Financial support from National Basic Research Program of China (973 Program) (No. 2015CB856600), the National Natural Science Foundation of China (Nos. 21325206, 21632001), National Young Top-notch Talent Support Program, CAS Interdisciplinary Innovation Team, and Peking University Health Science Center (Nos. BMU20150505, BMU20160541) is greatly ap- preciated. We thank Bencong Zhu and Ao Sun in this group for reproducing the results of 2a and 2k.
An efficient KI catalyzed nitrogenation of aldehydes and alcohols for the direct synthesis of carbamoyl azides and ureas via a radical process has been developed. The simple operating procedures, the readily available...