Amination of alpha-branched aldehydes, 2-phenylpropanal, di-tert-butyl (E)-diazene-1,2-dicarboxylate, di-tert-butyl (S)-1-(1-oxo-2-phenylpropan-2-yl)hydrazine-1,2-dicarboxylate, (-)-Camphorsulfonic acid, (8α,9S)-6′-Methoxycinchonan-9-amine, Quinine Derivative