Ambient Temperature, Tandem Catalytic Dehydrocoupling−Hydrogenation Reactions Using Rh Colloids and Me₂NH·BH₃ as a Stoichiometric H₂ Source

Highly active Rh colloids, generated in situ during the catalytic dehydrocoupling of Me2NH.BH3 using [{Rh(cod)(mu-Cl)}2] as a precatalyst, are capable of efficiently hydrogenating alkenes at 25 degrees C in a one-pot procedure using only the evolved H2 from the initial dehydrocoupling reaction.