3-Pyridazinylnitrenes and 2-pyrimidinylnitrenes.

@article{Torker20143PyridazinylnitrenesA2,
  title={3-Pyridazinylnitrenes and 2-pyrimidinylnitrenes.},
  author={Sebastian Torker and David Kvaskoff and C. Wentrup},
  journal={The Journal of organic chemistry},
  year={2014},
  volume={79 4},
  pages={
          1758-70
        }
}
Mild flash vacuum thermolysis of tetrazolo[1,5-b]pyridazines 8T generates small amounts of 3-azidopyridazines 8A (8aA, IR 2145, 2118 cm(-1); 8bA, 2142 cm(-1)). Photolysis of the tetrazoles/azides 8T/8A in Ar matrix generates 3-pyridazinylnitrenes 9, detected by ESR spectroscopy (9a: D/hc = 1.006; E/hc = 0.003 cm(-1)). Cyanovinylcarbenes 11, derived from 4-diazobut-2-enenitriles 10, are also detected by ESR spectroscopy (11a: D/hc = 0.362; E/hc = 0.021 cm(-1)). Carbenes 11 rearrange to… Expand
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