127056-14-8Relevant articles and documents
Double intramolecular Diels-Alder reaction of α,β-unsaturated hydrazones: A new route to 2,2′-bipyridines
Bushby, Nicholas,Moody, Christopher J.,Riddick, David A.,Waldron, Ian R.
, p. 793 - 794 (2007/10/03)
Heating the 1,3-diynyl bis-α,β-unsaturated hydrazones 3, 6 and 10 results in double intramolecular Diels-Alder reaction of the 1-azadienes, and after aromatisation by loss of dimethylamine, the formation of bipyridines 11-14.