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有机卤化物的还原脱卤反应在有机合成和环境保护中扮演着重要的角色,是有机化学文献很早就开始描述的反应之一。许多成功而有效的还原脱卤方法已被报道。但是对有机卤化物的C—C1键,尤其是芳烃氯化物,特别是C—F键的还原脱卤还比较困难(如卤化苯上的C—C1键和C—F键的键能很大,分别为397和523kJ/mol)。近年来我们报道了在常温常压下应用络合催化法合成出纳米尺寸的碱金属氢化物(基本颗粒在20nm左右,比表面积50~90m~2/g)。这种合成方法
The reductive dehalogenation of organic halides plays an important role in organic synthesis and environmental protection and is one of the very early reactions in the organic chemistry literature. Many successful and effective reductive dehalogenation methods have been reported. However, it is still difficult to dehydrohalogenate the C-C1 bonds of organic halides, especially the aromatic chlorides, especially the C-F bonds (for example, the bonding energies of C-C1 and C-F bonds on halogenated benzene can be very large , 397 and 523 kJ / mol, respectively). In recent years, we reported the synthesis of nano-sized alkali metal hydride (basic particles of about 20nm, specific surface area of 50 ~ 90m ~ 2 / g) by complexation catalysis at room temperature and pressure. This synthesis method