Oxidative 1,4-diamination of dienes using simple urea derivatives.

Diamination of alkenes and dienes has found widespread use in the synthesis of biologically active target molecules. Although the 1,2-diamination of alkenes has been comprehensively explored, versatile methods that install higher order 1,n-diamine moieties (e.g., n = 3-5) are not broadly developed. Herein, we report the development of an oxidative 1,4-diamination of dienes. This method represents one of the scarce examples of exclusive regioselectivity for 1,4-diamination. The reaction is easy to perform, uses simple reagents, works with a variety of functionalized dienes, and provides unique heterocyclic products.