Regioselective preparation of 2- and 3-nitrodibenzofurans by the direct nitration of dibenzofuran.
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概要
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Nitration of dibenzofuran with nitric acid in trifluoroacetic acid gave 3-nitrodibenzofuran selectively under very mild conditions. In contrary, the Friedel-Crafts type nitration using alkyl nitrates and aluminium chloride in nitromethane gave 2-nitrodibenzofuran as the main product.
- 公益社団法人 日本化学会の論文
著者
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Takahashi Hisakazu
Department of Fiber and Color Chemistry, Faculty of Engineering, Fukui University