• 제목/요약/키워드: Chemical effect

검색결과 12,732건 처리시간 0.036초

Substituent Effect in Photochemistry of Carbonyl Compounds: α-Halovalerophenones

  • Cho, Sung-Su;Park, Bong-Ser
    • Bulletin of the Korean Chemical Society
    • /
    • 제25권1호
    • /
    • pp.42-44
    • /
    • 2004
  • Valerophenones containing a substituent at alpha position to the carbonyl group show the remarkable substituent effects on their photochemical reactions. ${\alpha}$-Bromovalerophenone gives only the C-Br bond cleavage products, but the ${\alpha}$-chlorovalerophenone follows the classical Norrish/Yang reaction pathway predominantly.