• Title/Summary/Keyword: photoreacton

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Photochemical Ring-Opening of Acid Anhydrides by $TiO_2$ Photocatalyst in Methanol

  • Kim, Sung-Sik;Mah, Yoon-Jung;Lee, Hye-Jong;Park, Sang-Kyu
    • Journal of Photoscience
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    • v.10 no.3
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    • pp.241-243
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    • 2003
  • Photoreactions of some carbonyl compounds with TiO$_2$ were investigated in methanol. Although 1,3-cyclohexanedione and phthalimide afforded 3-methoxy-2-cyclohexen-l-one and 3-methoxy-1-isoindolinone, respectively, acid anhydrides such as succinic, phthalic, and maleic anhydrides gave the monoesters of dicarboxylic acids in good to excellent yields, when they were irradiated on TiO$_2$ in methanol with 300 nm UV light.

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