Novel Photochromic Spiro[Thioxanthene-Naphthopyrans] with Faster Bleaching Kinetics

Author(s): Erica Fontes Silva, Paulo J. Coelho.

Journal Name: Letters in Organic Chemistry

Volume 5 , Issue 6 , 2008

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Abstract:

Novel spiro[thioxanthene-naphthopyrans] were prepared and their photochromic properties in solution investigated under UV-Vis continuous irradiation. When compared to known similar naphthopyrans these new compounds showed a significant bathochromic shift of the maximum wavelength of absorption and faster ring closure kinetics.

Keywords: Photochromism, naphthopyran, spiro compounds, kinetics, UV irradiation, heterocycles

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Article Details

VOLUME: 5
ISSUE: 6
Year: 2008
Page: [502 - 506]
Pages: 5
DOI: 10.2174/157017808785740417
Price: $65

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