Some new methods for preparing 2, 3??and 3, 4??diaminopyridines

JB Campbell, JM Greene, ER Lavagnino…

Index: Campbell; Greene; Lavagnino; et al. Journal of Heterocyclic Chemistry, 1986 , vol. 23, # 3 p. 669 - 672

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Citation Number: 17

Abstract

8 in dilute nitric acid. The salt is isolated and then nitrated in a mixture of fuming nitric acid (90%) and 20% oleum. We observed that commercially available 1 can be nitrated ... 670 J. B. Campbell, J. M. Greene, E. R. Lavagnino, DN Gardner, A. J. Pike, J. Snoddy and E. C. Taylor ... Benzylamine also reacts readily with 5 and 11 providing 4-benzylamino-3-nitropyridine (9) and Z-benzylamino-3- nitropyridine (16) in excellent yields. The strategy en- visioned ...