反应详情

A mixture of 4.7 g N,N'-bis-(2-methoxy-1-carboxy-1-ethyl)-N,N'-bis-(2-hydroxy-phenylmethyl)-ethylenediamine (Example 17), 16 g trimethyl silyl iodide (0.08 mol), 6.32 g pyridine (0.08 mol) in 10 ml of chloroform is stirred at room temperature overnight, under nitrogen. The reaction mixture is filtered and the solvent evaporated in vacuo. The residue is poured in water giving a solid that after purification by chromatography furnishes N,N'-bis-(2-hydroxy-1-carboxy-1-ethyl)-N,N'-bis-(2-hydroxy-phenylmethyl)-ethylene diamine.

1. filtrationThe reaction mixture is filtered
2. customthe solvent evaporated in vacuo
3. additionThe residue is poured in water giving a solid that
4. customafter purification by chromatography