作者:Hirofumi Maekawa、Yoshimasa Yamamoto、Hisashi Shimada、Kazuaki Yonemura、Ikuzo Nishiguchi
DOI:10.1016/j.tetlet.2004.03.109
日期:2004.5
Mg-promoted reduction of a mixture of aromatic ketones (or imines) and aliphatic carbonyl compounds in N,N-dimethylformamide (DMF) brought about unique mixed pinacol type of cross coupling to give unsymmetrical vicinal diols (or amino alcohols) or α-hydroxyketones in good to moderate yields. The reaction may be initiated by electron transfer from magnesium metal to an aromatic carbonyl compound possessing a
镁促进的N,N-二甲基甲酰胺(DMF)中芳香族酮(或亚胺)和脂肪族羰基化合物混合物的还原反应产生独特的混合频哪醇类型的交叉偶联,从而得到不对称的邻位二醇(或氨基醇)或α-羟基酮中等至中等的产量。该反应可以通过电子从镁金属转移到具有较小的负还原电位的芳族羰基化合物而引发。发现芳族酮(或亚胺)与脂族羰基化合物之间的还原电势差是这种选择性交叉偶联的重要关键因素之一。