Partial Reduction of Pyridinium Salts as a Versatile Route to Dihydropyridones
作者:Timothy J. Donohoe、Dale J. Johnson、Laura H. Mace、Mark J. Bamford、Osamu Ichihara
DOI:10.1021/ol0476624
日期:2005.2.1
[reaction: see text] The addition of two electrons to a pyridinium salt turns it into a nucleophile. The intermediate generated by the reduction of such salts can be reacted successfully with a range of different electrophiles (acids, alkyl halides, and carbonyl compounds) and the intermediate hydrolyzed in situ to provide a wide range of dihydropyridones. Each position on the dihydropyridone ring