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由萘锂还原无水NdCl_3制得的活性金属Nd*在与羰基化合物的反应中显示出较高的反应活性。该反应经水解可生成相应的醇、片呐醇和烯烃,其还原状态不仅与羰基化合物的性质有关,还取决于Nd*:RCOR′的摩尔比以及反应温度和反应时间。本文还较详细地研究了Nd*:二苯酮的反应,不同的Nd*:二苯酮摩尔比以及外加配体或改变溶剂都将改变该反应的选择性。对该反应的机理亦进行了探讨。
The active metal Nd * prepared from the reduction of anhydrous lithium chloride by lithium naphthalene shows higher reactivity in the reaction with carbonyl compounds. The reaction is hydrolyzed to yield the corresponding alcohols, phenols and alkenes. The reduction state depends not only on the nature of the carbonyl compound, but also on the molar ratio of Nd *: RCOR ’as well as the reaction temperature and reaction time. In this paper, the reaction of Nd *: benzophenone was also studied in more detail. Different molar ratios of Nd *: benzophenone and the addition of ligands or solvent changes will change the selectivity of the reaction. The reaction mechanism is also discussed.