Reactions of trifluoroacetonitrile oxide or -nitrilimines with .BETA.-diketones and .BETA.-keto esters.
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概要
- 論文の詳細を見る
<I>N</I>-Phenyl-<I>C</I>-(trifluoromethyI)nitrilimine cyclized with β-diketones or β-keto esters under alkaline conditions to give the corresponding 3-trifluoromethylpyrazoles with acyl or alkoxycarbonyl group at the 4-position of the ring, respectively. While trifluoroacetonitrile oxide with β-diketones provided the corresponding trifluoromethylisoxazoles, its reactions with β-keto esters gave 4-acyl-5-hydroxy-3-trifluoromethylisoxazoles as well as the expected isoxazoles without the regioselectivity.
- 公益社団法人 日本化学会の論文
著者
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Tanaka Kiyoshi
Depariment Of Physiology Kyoto University School Of Medicine
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Mitsuhashi Keiryo
Department Of Industrial Chemistry Faculty Of Engineering Seikei University
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Kishida Munehisa
Department of Industrial Chemistry, College of Technology, Seikei University
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Maeno Seiji
Department of Industrial Chemistry, College of Technology, Seikei University
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