ChemInform Abstract: Metal‐Free α‐Amination of Secondary Amines: Computational and Experimental Evidence for Azaquinone Methide and Azomethine Ylide Intermediates. Issue 33 (25th July 2013) - Dieckmann, Arne; Richers, Matthew T.; Platonova, Alena Yu; Zhang, Chen; Seidel, Daniel; Houk, K. N.