Journal of the Chemical Society. Perkin transactions I p. 959 - 962 (1980)
Update date:2022-08-04
Topics:
Glover, Edward E.
Peck, Leonard, W.
Imidazo<1,5-a>pyridines in acetic acid solution are readily nitrated by nitric acid-sulphuric acid, although in some instances treatment of the base hydrogensulphate with nitric acid-acetic acid is preferred.Nitration occurs most readily in the 1-position, but 3-nitration occurs if the 1-position is already substituted.
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(1988)
