Formic acid and formate derivatives as hydrogen source on the hydrogenation of para‐chloronitrobenzene (p‐CNB) over supported gold catalysts were investigated. The hydrogenation activity in various formate derivatives followed the order: HCOOH < HCOONa < HCOOK < HCOONH₄, which was in accordance with the decrement of electronegativity of cation species in formate derivatives. Moreover, in the case of HCOONH₄ as hydrogen source, the p‐CNB conversion could enhance ten‐fold as the hydrogen source of H₂ at 60 ^oC. This promotion effect was also found in other supported Au catalysts. These results provide a general alternative hydrogen source to replace conventional H₂ as reducing agent for fine chemical processes.

中文翻译：

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甲酸或甲酸酯衍生物作为原位氢源在Au催化还原对氯硝基苯中的作用

研究了在负载型金催化剂上对氯硝基苯（p - CNB）加氢时甲酸和甲酸衍生物作为氢源。各种甲酸盐衍生物中的氢化活性遵循以下顺序：HCOOH <HCOONa <HCOOK <HCOONH ₄，这与甲酸盐衍生物中阳离子物种的电负性的降低有关。此外，在以HCOONH ₄为氢源的情况下，在60 ^o C下，p- CNB转化率可以作为H ₂的氢源提高十倍。在其他负载型Au催化剂中也发现了这种促进作用。这些结果提供了替代常规H ₂的通用替代氢源。 作为精细化工过程的还原剂。