The use of the well‐defined [Ru(triphos)(tmm)] catalyst, CO2 as C1 source, and H2 as reducing agent enabled the reductive methylation of isolated imines, as well as the direct coupling of amines with aldehydes and the subsequent reductive methylation of the in situ formed imines. The method, which afforded the corresponding N‐methyl amines in very good to excellent yields, was also used for the preparation
使用定义明确的[Ru(triphos)(tmm)]催化剂,CO 2作为C 1源和H 2作为还原剂可实现分离的
亚胺的还原甲基化,以及胺与醛和
氯胺的直接偶联。随后在原位形成
亚胺的还原性甲基化。该方法以非常好的至极好的收率提供了相应的N-甲基胺,该方法还用于一步制备没有明显浪费的抗真菌剂butenafine,从而提高了合成的原子效率。