Hydride from sodium hydride acts as a base and not as a nucleophile, due to its small size and high charge density. However, recent research has found that a sodium hydride–sodium iodide composite can be a unique hydride donor in the challenging partial reduction of inert amides to imines.

中文翻译：

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氢化钠的长期反应

由于氢化钠的小尺寸和高电荷密度，其氢化物起碱的作用而不是亲核试剂的作用。但是，最近的研究发现，氢化钠-碘化钠复合物在将惰性酰胺部分还原为亚胺方面具有挑战性，可以成为独特的氢化物供体。