R. Banks, R. Haszeldine, E. Phillips
Mar 1, 1977
Citations
0
Influential Citations
6
Citations
Journal
Journal of Fluorine Chemistry
Abstract
Abstract 3-Chlorotrifluoro- and 3,5-dichlorodifluoro-4-iodopyridine, easily procured by treatment of 3-chlorotetrafluoro- and 3,5-dichlorotrifluoro-pyridine, respectively, with sodium iodide, yield the corresponding 4,4′-bipyridyls when heated with copper and their 4- H analogues when reduced with sodium iodide in DMF. 3,5-Dichlorodifluoroisonicotinic acid can be prepared via lithium-iodine exchange between 3,5-dichlorodifluoro-4-iodopyridine and butyl-lithium.