引用本文:
郑仙明, 胡惟孝, 王国洪. DCC偶联法合成腈代乙酰胺[J]. 应用化学,
2007, 24(7): 850-852.
Citation: ZHENG Xian-Ming, HU Wei-Xiao, WANG Guo-Hong. Synthesis of Cyanoacetamide via DCC Coupling[J]. Chinese Journal of Applied Chemistry, 2007, 24(7): 850-852.
Citation: ZHENG Xian-Ming, HU Wei-Xiao, WANG Guo-Hong. Synthesis of Cyanoacetamide via DCC Coupling[J]. Chinese Journal of Applied Chemistry, 2007, 24(7): 850-852.
DCC偶联法合成腈代乙酰胺
English
Synthesis of Cyanoacetamide via DCC Coupling
Abstract:
Cyanoacetamide is an important intermediate.This paper reports a new preparation method for N-substituded cyanoacetamides from cyanoacetic acid and N-substituded amine via DCC coupling.Into equal mole of cyanoacetic acid and amine in solvent was added dropwise equal mole of DCC,refluxed,and the end of the reaction was determined with TLC.The crude product was recrystallized or chromatographed with proper solvent to afford the product in yield of 52%~90% and ≥95% purity.The product was characterized by mp,IR and 1H NMR.This procedure is convenient and gives higher yield,and is suitable for the preparation of cyanoacetamides from different amines.
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Key words:
- cyanoacetamide
- / DCC
- / cyanoacetic acid
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