Title of article
NMR structural elucidation of photochromic quinolone photoproducts
Author/Authors
Berthet، نويسنده , , J. and Lokshin، نويسنده , , V. and Vales، نويسنده , , M. and Samat، نويسنده , , A. and Vermeersch، نويسنده , , G. and Delbaere، نويسنده , , S.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2005
Pages
6
From page
6319
To page
6324
Abstract
UV irradiation of 3-benzoyl-2-benzyl-6,7-difluoro-1-propyl-1H-quinolin-4-one leads to the formation of a mixture of photoproducts, with different evolutions. The structure of each of them has been obtained by one- and two-dimensional multinuclear NMR experiments. Two photoenols, which are thermally reversible, have been identified. All of the other photoproducts have been assigned to degradation. Based on the structural identification and the photochemical and thermal evolution of samples, a plausible mechanism is proposed.
Keywords
Photochromism , Quinolone , NMR
Journal title
Tetrahedron Letters
Serial Year
2005
Journal title
Tetrahedron Letters
Record number
1846615
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