Diazaindenes (Azaindoles). Part 7. Formation of Imidazopyridinium-8-carboxylate in an Attempt to prepare Pyrrolopyridin-3-one

DOI: 10.1039/P19800000132

Source and publish data:

Journal of the Chemical Society. Perkin transactions I p. 132 - 135 (1980)

Update date:2022-08-03

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Authors:

Parrick, John

Wilcox, Russel

Kelly, Anthony H.

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Article abstract of DOI:10.1039/P19800000132

Attempts to obtain N-(3-carboxy-2-pyridyl)glycine (5) from 2-chloro-3-cyanopyridine are described.The ring-chain tautomerism of certain N-(2-pyridyl)aminoacetaldehydes is discussed.Three preparations of N-3-(carboxy-2-pyridyl)aminoacetaldehyde (20) and its cyclisation to the zwitterionic imidazo<1,2-a>pyridinium-8-carboxylate (23) are given.

Full text of DOI:10.1039/P19800000132

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