Proenca, M. Fernanda published the artcileOne-pot approach to the synthesis of novel 12H-chromeno[2′,3′:4,5]imidazo[1,2-a]pyridines in aqueous media, HPLC of Formula: 17281-59-3, the publication is Tetrahedron (2010), 66(25), 4542-4550, database is CAplus.
The chromeno-imidazo[1,2-a]pyridine scaffold was generated in a one pot condensation/cyclization reaction involving a salicylaldehyde and 1-(cyanomethyl)pyridinium chloride in aqueous sodium carbonate solution These novel compounds, e.g., I, were isolated in 47-71% yield. The reaction pathway was followed by 1H NMR spectroscopy allowing a clear understanding of the side reactions involved in the process. Different mono-substituted pyridinium chlorides were synthesized and reacted with mono-substituted salicylaldehydes and a detailed discussion of the scope of the synthetic method is also presented.
Tetrahedron published new progress about 17281-59-3. 17281-59-3 belongs to pyridine-derivatives, auxiliary class Pyridine,Nitrile,Salt, name is 1-(Cyanomethyl)pyridin-1-ium chloride, and the molecular formula is C7H7ClN2, HPLC of Formula: 17281-59-3.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem