67678-51-7Relevant academic research and scientific papers
1,3-Dipolar Character of Six-membered Aromatic Rings. Part 48. Novel Conversions of Pyridines to Isoquinolines
Katritzky, Alan R.,Dennis, Nicholas,Dowlatshahi, Hossein A.
, p. 331 - 342 (1980)
1-Heteroaryl-3-oxidopyridinium dimers with dienamines give cycloadducts which are dehydrogenated to 'mixed dimer' of the corresponding 2-heteroaryl-4-oxidoisoquinolinium with the starting 1-heteroaryl-3-oxidopyridinium.The 'mixed dimer' (21) is also effectively prepared by a two-step sequence of a novel intramolecular oxidation-reduction, followed by oxidation of the resulting alcohol.The 'mixed dimers' undergo reversible thermal dissociation and in one case the corresponding monomers could be trapped as various cycloadducts.
