N-(2-formyl-1-methylimidazol-4-yl)-2,2-dimethylpropanamide: a versatile reagent for preparing imidazole-amine ligands with variable second-coordination spheres
作者:Lionel E. Cheruzel、Jinlan Cui、Mark S. Mashuta、Craig A. Grapperhaus、Robert M. Buchanan
DOI:10.1016/j.tetlet.2011.07.025
日期:2011.9
Two synthetic pathways to N-(2-formyl-1-methylimidazol-4-yl)-2,2-dimethylpropanamide from 1-methyl-2-carboxaldehyde are described. The reagent serves as a useful synthon for reductive amination reactions with primary and secondary amines in the presence of sodium cyanoborohydride to yield a series of ligands with second coordination sphere functional groups. Protocols for the syntheses of related imidazole
描述了从1-甲基-2-甲醛向N-(2-甲酰基-1-甲基咪唑-4-基)-2,2-二甲基丙酰胺的两种合成途径。该试剂可作为有用的合成子,用于在氰基硼氢化钠存在下与伯胺和仲胺进行还原胺化反应,生成一系列带有第二个配位球官能团的配体。还报道了用氨基酸,席夫碱和其他酰胺在4-位官能化的相关咪唑合成子的合成方案。