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Start Over Author "Nobuko Itoh" Journal bulletin of the chemical society of japan
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1. Photochemical Alkylation, Hydroxyalkylation, and Alkoxylation of Pyridinecarboxamides in Alcohol

Author

Mitsuharu Kanai, Hiroshi Itoh, Nobuko Itoh, Toru Sugiyama, and Akira Sugimori

Subjects
chemistry.chemical_compound, chemistry, Radical, Excited state, Pyridine, Alcohol, General Chemistry, Singlet state, Methanol, Alkylation, Triplet state, Photochemistry
Abstract

The UV-irradiation of 2- and 4-pyridinecarboxamides in alcohol brings about alkylation and/or hydroxyalkylation in the pyridine ring. In the irradiation of 3-pyridinecarboxamide in the presence of sulfuric acid, ionic reaction (alkoxylation at the 2- and 6-position) and radical reaction (alkylation at the 4- and 6-position) occur in parallel. The effects of quenchers indicate that two alkylation products originate from one excited triplet state which is quenched by energy-transfer mechanism and that two alkoxylation products originate from the excited singlet state.

Published
1988
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