摘要 |
A process for producing an alpha -hydroxyiminophenylacetonitrile represented by general formula [II], (wherein R<1>, R<2>, R<3> and Z are each as defined in the specification) by reacting a crude nitrile containing a phenylacetonitrile represented by general formula [I], (wherein R<1>, R<2>, R<3> and Z are each as defined in the specification) with an alkyl nitrite in the presence of a base, extracting the reaction mixture with water, and neutralizing the separated water layer with an acid. This process enables target alpha -hydroxyiminophenylacetonitriles to be readily produced in a highly pure form in high yield by extracting the reaction mass with water and neutralizing the separated water layer with an acid.
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申请人 |
SHIONOGI & CO., LTD.;SUMITOMO CHEMICAL COMPANY, LIMITED;TAKASE, AKIRA;KAI, HIROYUKI;MASUI, MORIYASU;MASUMOTO, KATUHISA;NAKAMURA, AKIHIKO;KIYOSHIMA, YUJIRO;SASAKI, MIKIO |
发明人 |
TAKASE, AKIRA;KAI, HIROYUKI;MASUI, MORIYASU;MASUMOTO, KATUHISA;NAKAMURA, AKIHIKO;KIYOSHIMA, YUJIRO;SASAKI, MIKIO |