B. Bildstein et P. Denifl, N-DIMETHYLALUMINUM-N',N'-DIMETHYLHYDRAZIDE - A NEW AND EFFICIENT REAGENT FOR THE SYNTHESIS OF N,N-DIMETHYLHYDRAZONES AND N-UNSUBSTITUTED HYDRAZONES, Synthesis, (2), 1994, pp. 158-160
N-dimethylaluminum-N',N'-dimethylhydrazide, synthesized from N,N-dimet
hylhydrazine and trimethylaluminum, reacts with aromatic ketones or wi
th electronically unfavourable substrates to give the corresponding hy
drazones in high yield. Subsequent exchange with anhydrous hydrazine a
ffords the N-unsubstituted hydrazones.