摘要/Abstract
廉价金属铜，可催化醛肟的脱水反应，生成有机腈.该反应在腈类溶剂中发生，并且使用二氧化锰作助催化剂，三苯基膦作配体.如果使用水作溶剂，则会发生贝克曼重排，生成酰胺.这种选择性随溶剂切换的有趣反应，为合成相关有用的有机化合物提供了简便方法，兼具学术与实用价值.
关键词: 醛肟, 脱水, 贝克曼重排, 腈, 酰胺
It was found that, copper as a cheap metal, could well catalyze the dehydration reaction of aldoximes to organonitriles in nitrile solvent by using MnO2 as the co-catalyst and PPh3 as the ligand. In contrast, instead of organonitriles, the Cu-catalyzed reactions of the aldoximes in water led to amides, which were the products of the Beckmann rearrangements. These interesting selectivity-switchable reactions afford easy accesses to the related useful organic compounds and may be of both academic and practical values.
Key words: aldoxime, dehydration, Beckmann rearrangement, nitrile, amide
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