An Efficient Method for Aryl Nitro Reduction and Cleavage of Azo Compounds Using Iron Powder/Calcium Chloride
作者:K. Rangappa、S. Chandrappa、K. Vinaya、T. Ramakrishnappa
DOI:10.1055/s-0030-1259067
日期:2010.12
A novel, efficient Fe/CaCl(2) system is revealed for the reduction of nitroarenes and reductive cleavage of azo compounds by catalytic transfer hydrogenation (CTH). The selective reduction of nitro compounds in the presence of sensitive functional groups including halides, carbonyl, hydroxyl, aldehyde, methyl, methoxy, acetyl, nitrile, and ester substituents with an excellent yields is reported. The
揭示了一种新颖、高效的 Fe/CaCl(2) 系统,用于通过催化转移氢化 (CTH) 还原硝基芳烃和还原裂解偶氮化合物。据报道,在敏感官能团(包括卤化物、羰基、羟基、醛、甲基、甲氧基、乙酰基、腈和酯取代基)存在的情况下,硝基化合物的选择性还原具有极好的收率。简单的实验程序和易于纯化使该协议具有优势。