Dehydrogenation of Diamine–Monoboranes to Cyclic Diaminoboranes: Efficient Ruthenium-Catalyzed Dehydrogenative Cyclization


  • We thank the CNRS and the ANR for support through the HyBoCat ANR-09-BLAN-0184 program. Johnson Matthey is gratefully acknowledged for a generous loan of RuCl3nH2O.


original image

Remote control: The title reaction is the first example of a catalyzed dehydrogenative cyclization (CDC) of diamine–monoboranes to give cyclic diaminoboranes. The cyclization reaction is strongly dependent on the nature of the substitution pattern at the remote amino group.