faster than the commonly used methods which use NaH in THF or DMF for p-methoxybenzylation of hydroxy and amide groups. The described method was applicable for sterically hindered substrates at room temperature without adding any activating reagents such as tetrabutylammonium iodide.
的p被羟基和酰胺基团的-methoxybenzylation p甲氧基苄基氯利用的NaO吨-Bu在DMSO中描述。在DMSO中使用NaO t -Bu对位阻薄荷醇进行对甲氧基苄基化的过程比在THF或DMF中使用NaH对羟基和酰胺基进行对甲氧基苄基化的常用方法进行得更快。所描述的方法适用于室温下受阻的底物,而无需添加任何活化剂,例如四丁基碘化铵。
A new method for the synthesis of amides from imines
An efficient and straightforward method for the synthesis of amides by the reaction of imines and anhydrides in the presence of Et3SiH/Zn is reported. Mild reaction conditions, good yields of products, short reaction times, and operational simplicity are advantages of this procedure.