Where did all the bpy go? - Synthesis, crystal and molecular structure of 4-nitropicolinic acid monohydrate

Constable, E. C., Housecrof, C. E., Kariuki, Benson ORCID: https://orcid.org/0000-0002-8658-3897 and Mahmood, A. 2006. Where did all the bpy go? - Synthesis, crystal and molecular structure of 4-nitropicolinic acid monohydrate. Supramolecular Chemistry 18 (4) , pp. 299-303. 10.1080/10610270500398821

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Abstract

The conversion of 2,2′-bipyridine (bpy) to 4,4′-disubstituted derivatives is commonly achieved by a route involving preparation of the N,N′-dioxide and subsequent nitration with HNO3/H2SO4. The yields in the latter reaction are of the order of 50% and we now show that a competing ring oxidation process leads to the formation of 4-nitropicolinic acid. The solid state structure of the monohydrate of 4-nitropicolinic acid is reported, which exhibits a series of interesting packing motifs arising from hydrogen bonding networks.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	Taylor & Francis
Last Modified:	24 Oct 2022 11:11
URI:	https://orca.cardiff.ac.uk/id/eprint/47234

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