Journal of the Chemical Society. Perkin transactions I p. 2480 - 2484 (1980)
Update date:2022-09-26
Topics:
Katritzky, Alan R.
Beltrami, Hector
Sammes, Michael P.
N-(2,6-Dimethyl-4-oxopyridin-1-yl)pyridinium salts (4), new reagents for the regiospecific synthesis of 4-substituted pyridines, give moderate to high yields of 4-alkyl- and 4-aryl-pyridines (8) - (10) on reaction with Grignard reagents.The scope and limitations on the reaction, which proceeds via 1,4-dihydro-intermediates (5) - (7), are explored.No 2-substituted pyridines were detected.Some reactions with organolithium compounds are also described.
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Doi:10.1007/s11172-007-0338-z
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