摘要
天然氨基酸是较好的手性来源.在碱性条件下与乙二醛、甲醛经过缩合反应生成了(S)-2-(咪唑-1-基)羧酸钠,再在甲醇中和氯化亚砜反应制得手性咪唑羧酸甲酯.进一步以二胺为桥联剂,经直接胺解获得双咪唑化合物.对所制化合物进行了结构表征.
The Sodium (S) - 2- (1 - imidazolyl)alkanoic acids (2) were prepared by cohydendsation reaction of natural amino acids with formaldehyde water solution and glyoxal water solution under basic condition. The Sodium salts (2) react with methyl alcohol to form (S) - 2 - ( 1 - imidazolyl)alkanoates(3ab. The (S) - 2 - ( 1 - imidazolyl)alkanols(4a, 5b) were obtaind directly by amidolysis of the (S) - 2 - ( 1 - imidazolyl)alkanoates (2) with biamine. Finally, the structures of the compounds were confirmed by IR, 1HNMR, MS, and elemental analysis.
出处
《晋中学院学报》
2005年第6期1-3,共3页
Journal of Jinzhong University