Reduction and Coupling Reaction of Carbonyl Compounds by Aluminum Powder and a Small Amount of Oxalic Acid in Water

芳香的醛和芳基甲基酉同类联合的方便 pinacol 被铝粉末在水里面对草酸酸与高收益完成了。然而， pinacols 的 diastereoselectivities 不是令人满意的，并且大多数脂肪族的醛和 diaryl 酉同类被发现了是在一样的条件下面的 unreactive。

A convenient pinacol coupling of aromatic aldehydes and aryl methyl ketones has been achieved with high yields by aluminum powder in the presence of oxalic acid in water. However, the diastereoselectivities of pinacols were not satisfying, and most aliphatic aldehydes and diaryl ketones have been found to be unreactive under the same conditions.