Methylation of 5-Phenyl-1,4-benzodiazepin-2-one derivatives with<i>N,N</i>-dimethylformamide-dimethyl acetal
作者:Julia C. Pinto、R. Ian Fryer
DOI:10.1002/jhet.5570300416
日期:1993.7
is presented. Methods traditionally used involve treatment of the 1,4-benzodiazepinone anion with an alkyl halide. It has been demonstrated that these derivatives can be methylated on the amide nitrogen atom by use of dimethyl-formamide dimethyl acetal which acts as both reagent and solvent for the reaction.
提出了一种在1,4-苯并二氮杂pine环系统中环酰胺N-甲基化的新方法。传统上使用的方法包括用烷基卤处理1,4-苯并二氮杂酮阴离子。已经证明这些衍生物可以通过使用二甲基甲酰胺二甲基乙缩醛在酰胺氮原子上甲基化,该二甲基甲酰胺充当反应的试剂和溶剂。