Synthesis of Guanidines via Reaction of Amines with Carbodiimides in the Presence of Ionic Liquid

Abstract

Different ionic liquids (ILs) were synthesized and evaluated for the preparation of substituted guanidines from the reaction of amines and carbodiimides. 1-methylimidazolium tetrafluoroborate [HMIm]BF4 was found to be the best ionic liquid for this reaction. This IL acted as a promoter for the addition of primary and secondary amines to carbodiimides. By this efficient approach, various guanidines were prepared in excellent yields.

Keywords

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References

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