Efficient conversion of Schiff bases and carboxylic acids to β-lactams can be carried out at room temperature in CH2Cl2, using a cyanuric chloride-N,N-dimethyl formamide complex. The complex is easily prepared by reaction of cyanuric chloride and DMF, an inexpensive reagent, at room temperature. Optimization of conditions and comparison of yield with cyanuric chloride were performed.
在室温下,利用
氰尿酰
氯-
N,N-二甲基甲酰胺复合物,可以在
CH2Cl2中高效地将席夫碱和
羧酸转化为β-内酰胺。通过在室温下将
氰尿酰
氯与低成本试剂
DMF反应,可以轻松制备该复合物。优化了条件并比较了产率与
氰尿酰
氯的结果。