A Convenient Method for Dehydrogenation of Symmetric Hydrazo Compounds
摘要:
A convenient method using FeCl3 as oxidant to dehydrogenate symmetric hydrate compounds is reported for the first time. The method is superior to other known methods for dehydrogenating ArNHNHAr. It needs only cheap and less toxic reagents, mild conditions and short reaction time. Eight symmetric ate compounds are prepared in good yields.
N-(benzoazynyl) aminides with N-halosuccinimides provides a mild and regioselective method to functionalize the negatively charged diazine moiety in most cases. In some examples, however, formation of other products is explained. Finally, alkylation of the exocyclic nitrogen and reduction of the N–N bond provides a simple and straightforward strategy to obtain functionalized N-benzyl-benzoazynyl-α-amines.