Anoop S. Singh, Dhananjay Kumar, Nidhi Mishra and Vinod K. Tiwari
RSC Adv., 2016,6, 84512-84522
DOI:
10.1039/C6RA14131E,
Paper
A facile and high-yielding one-pot synthesis of carbamates and N,N′-disubstituted symmetrical ureas from N-acylbenzotriazoles has been devised. It is believed that, the intermediate acyl-azide undergo Curtius rearrangement and in different solvents gives different products i.e. carbamates in alcohols and N,N′-disubstituted symmetrical urea in THF.