A new convenient synthesis of diazoalkanes from N-(N-nitrosoalkylamino)methyl)benzamides.
作者:MINORU SEKIYA、YOJI OHASHI、YOSHIYASU TERAO、KEIICHI ITO
DOI:10.1248/cpb.24.369
日期:——
Conformational analysis by means of nuclear magnetic resonance measurement has disclosed that N-[(N-nitrosoalkylamino) methyl] amides newly prepared are in favor of anti form in crystals while in state of solution form syn-anti equilibrium mixture. These nitrosoamines have been found smoothly to generate diazoalkanes by the influence of alkali. In the use of their benzamide analogs a new practically useful means for synthesizing a series of diazoalkanes has been established.
通过核磁共振测量的构象分析表明,新制备的N-[(N-亚硝基烷基氨基)甲基]酰胺在结晶状态下倾向于反式构象,而在溶液状态下则呈现出顺-反平衡混合物。这些亚硝基胺在碱的作用下能够顺利生成二氮烷。在其苯酰胺类似物的使用中,建立了一种合成一系列二氮烷的新实用方法。