Reaction of Functionalized Carbodiimide with α-Amino Ester: A Selective Synthesis of 2,3,5-Trisubstituted Imidazol-4-ones
作者:Hong-Xia Li、Yong Sun、Ming-Wu Ding
DOI:10.1080/00397910802326562
日期:2008.11.13
3-(Ethoxycarbonylmethylene)-2-(arylimino)-imidazol-4-ones 5 were synthesized selectively by reaction of -amino ester with carbodiimides 4, which were obtained from aza-Wittig reaction of iminophosphoranes 2 with aromatic isocyanates.