Pd(II)-Catalyzed Intermolecular 1,2-Diamination of Conjugated Dienes Grégory L. J. Bar Guy C. Lloyd-Jones Kevin I. Booker-Milburn 10.1021/ja051181d.s001 https://acs.figshare.com/articles/journal_contribution/Pd_II_Catalyzed_Intermolecular_1_2_Diamination_of_Conjugated_Dienes/3285013 A Pd(II) chloride precatalyst, in the presence of 1 equiv of benzoquinone, effects highly efficient, regioselective 1,2-diamination of 1,3-dienes using dialkyl ureas under mild conditions. There is no requirement for a large excess of diene. 2005-05-25 00:00:00 requirement presence Conjugated Dienes diene Pd benzoquinone regioselective precatalyst chloride dialkyl ureas Diamination 1 equiv Intermolecular diamination