摘要/Abstract
通过在氮气中150 ℃下煅烧硒粉和银粉, 可以很方便地制备硒化银(Ag/Se)新材料. 该材料有着很强的氧运载能力, 可以活化分子氧, 从而实现催化氧化反应. 对该材料在醇氧化中的应用进行了研究, 为制备相关醛酮, 提供了一种清洁的新合成方法. 该方法适用于伯醇与仲醇的氧化反应, 并且对伯醇氧化有一定的选择性, 可以中等产率合成醛. 硒化银作为一种新颖的非均相硒催化材料, 未来有望获得更加广泛的应用, 从而显著推动硒催化化学的发展.
关键词: 硒, 银, 催化氧化, 醇, 羰基
By calcining selenium powder and silver powder at 150 ℃ under N2 protection, the novel material silver selenide (Ag/Se) could be easily fabricated. It possessed very strong oxygen carrier features and could activate the molecular oxygen to achieve the catalytic oxidation reactions. In this work, the Ag/Se-catalyzed alcohol oxidation reactions were investigated to afford a novel clean method for the synthesis of carbonyls. It could be applied for the oxidation reactions of primary and secondary alcohols, and could catalyze the selective oxidation of primary alcohols to synthesize aldehydes in moderate yields. Ag/Se as the novel Se-containing catalytic material may be comprehensively applied in future and significantly pushes forward the development of the chemistry of Se catalysis.
Key words: selenium, silver, catalyzed oxidation, alcohol, carbonyl
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