Stereoselective Synthesis of Diaza-Hexatrienes via [1,6]- O-to- N Group Transfer Strategy
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Herein, we report a transition metal-free synthesis of Z-configured 2,3-diaza-1,3,5-hexatrienes via a base-mediated rearrangement of O-substituted salicylaldehyde N-tosylhydrazones. This unprecedented O-to-N group transfer occurs under mild conditions, exhibit... ...
