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A Norrish reaction in organic chemistry is a photochemical reaction taking place with ketones and aldehydes. Such reactions are subdivided into Norrish type I reactions and Norrish type II reactions. The reaction is named after Ronald George Wreyford Norrish. While of limited synthetic utility these reactions are important in the photo-oxidation of polymers such as polyolefins, polyesters, certain polycarbonates and polyketones.

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  • Norrish-Reaktion (de)
  • Reazioni di Norrish (it)
  • ノリッシュ反応 (ja)
  • Norrish reaction (en)
  • 诺里什反应 (zh)
  • Фотореакція Норріша (uk)
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  • A Norrish reaction in organic chemistry is a photochemical reaction taking place with ketones and aldehydes. Such reactions are subdivided into Norrish type I reactions and Norrish type II reactions. The reaction is named after Ronald George Wreyford Norrish. While of limited synthetic utility these reactions are important in the photo-oxidation of polymers such as polyolefins, polyesters, certain polycarbonates and polyketones. (en)
  • ノリッシュ反応(ノリッシュはんのう、Norrish reaction)とは、有機化学における光分解反応のひとつ。ケトンまたはアルデヒドを基質とし、光励起によるカルボニル基上の nπ*遷移を経て2個のラジカルが発生する。反応経路と生成物の異なる I型 (type I) と II型 (type II) の反応がある。1930年代に本反応を報告したロナルド・ノーリッシュにその名をちなむ。 (ja)
  • Le reazioni di Norrish sono una classe di reazioni chimiche, catalizzate dalla luce UV, in cui aldeidi e chetoni in fase gassosa producono una varietà di composti tramite intermedi radicalici. Interessanti applicazioni chimico-ambientali riguardano lo studio delle trasformazioni chimiche che avvengono negli strati alti dell'atmosfera. Grazie ai suoi studi nel campo fotochimico Ronald George Wreyford Norrish ricevette il Premio Nobel per la chimica nel 1967. Esistono due possibili cammini di reazione denominati Norrish I e Norrish II. (it)
  • Фотореакція Норріша (англ. Norish photoreaction, рос. фотореакция Норриша) — хімічна реакція. Підрозділяється на реакцію Норріша типу 1 і реакцію Норріша типу 2. Названа на честь англійського хіміка, лауреата Нобелівської премії Роналда Норріша. (uk)
  • Norrish反应(Norrish reaction),又称罗氏反应、Norrish光化学反应、Norrish裂解反应,以化学家 Ronald George Wreyford Norrish 的名字命名。 醛、酮发生的一类光化学反应。分为 Norrish Ⅰ型裂解与 Norrish Ⅱ型裂解两种类型。 (zh)
  • Norrish-Reaktionen sind Namensreaktionen aus dem Bereich der Organischen Chemie. Es handelt sich um photochemische Spaltungen von Carbonylverbindungen, wie Ketonen oder Aldehyden. Sie werden in zwei Typen aufgeteilt, die als Norrish-Typ-I-Reaktion und Norrish-Typ-II-Reaktion bezeichnet werden. Die Reaktion wurde erstmals 1932 von dem englischen Chemiker Ronald George Wreyford Norrish (1897–1978) publiziert und nach diesem benannt. Zur Erzeugung der Radikale wird UV-Strahlung einer spezifischen Wellenlänge benötigt. (de)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Norrish1.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/NorrishApplication.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/Norrish_Type_II_Reaction_in_Baran's_Synthesis_of_Ouabagenin.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/Norrish2.png
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