@article{oai:kanazawa-u.repo.nii.ac.jp:00014838, author = {Fujii, Tozo and Yoshida, Kiyoshi and Ohba, Masashi and Mitsukuchi, Morihiro and Tanaka, Izumi and Yoshifuji, Shigeyuki and Kirisawa, Makoto}, issue = {8}, journal = {Chemical & pharmaceutical bulletin}, month = {Aug}, note = {The alkaline ferricyanide oxidation at 32°of 1-(3,4-dimethoxyphenethyl) pyridinium bromides (3c-f) carrying the n-butyl, isopropyl, benzyl, and phenyl group at the 3-position has been found to produce the corresponding 2-(4c-f) and 6-pyridones (5c-f) in ratios of 74 : 26,71 : 29,69 : 31,and 13 : 87. In the case of the 3-benzyl derivative (3e), 1-(3,4-dimethoxyphenethyl)-5-benzoyl-2 (1H)-pyridone (5g) has also been obtained in 1% yield. On the basis of the present and earlier data, possible factors in determining the orientation in the ferricyanide oxidation of 1,3-disubstituted pyridinium salts are discussed.}, pages = {2072--2077}, title = {Lactams. VIII. The Alkaline Ferricyanide Oxidation of 3-Substituted 1-(3,4-Dimethoxyphenethyl) pyridinium Salts : Effects of Hydrocarbon Substituents on Orientation of the Oxidation}, volume = {25}, year = {1977} }