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Issue 11, 1996
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Photocyclisation of 2-pyridyl phenyl ketone. A reaction driven by hydrogen bonding

Abstract

The photochemistry of 2-pyridyl phenyl ketone (2-PPK) has been studied in water, ethanol and other organic solvents of different polarity and hydrogen-bonding ability. Steady-state and laser flash photolysis (ps and ns resolution) techniques were used to determine the photoproducts and the reaction intermediates. The reactive state is the lowest n,π* carbonyl triplet. Three different photoreaction paths were recognised leading to cyclisation and reduction products. The relative contribution to the overall reaction by the different pathways is governed by the hydrogen-bonding ability of the solvent.

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Article type: Paper
DOI: 10.1039/FT9969201841
Citation: J. Chem. Soc., Faraday Trans., 1996,92, 1841-1851

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    Photocyclisation of 2-pyridyl phenyl ketone. A reaction driven by hydrogen bonding

    P. Bortolus, F. Elisei, G. Favaro, S. Monti and F. Ortica, J. Chem. Soc., Faraday Trans., 1996, 92, 1841
    DOI: 10.1039/FT9969201841

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