作者:Guillaume Pelletier、William S. Bechara、André B. Charette
DOI:10.1021/ja105194s
日期:2010.9.22
presence of 2-fluoropyridine. The electrophilic activated amide can then be reduced to the corresponding iminium using triethylsilane, a cheap, rather inert, and commercially available reagent. Imines can be isolated after a basic workup or readily transformed to the aldehydes following an acidic workup. The amine moiety can be accessed via a sequential reductive amination by the addition of silane and
该通讯描述了一种不含金属的方法,该方法涉及在环境压力和温度下以良好至极好的收率将仲酰胺有效且受控地还原为亚胺、醛和胺。该方法包括在 2-氟吡啶存在下用三氟甲磺酸酐对仲酰胺进行化学选择性活化。然后可以使用三乙基硅烷(一种廉价、惰性且可商购的试剂)将亲电活化的酰胺还原为相应的亚胺鎓。亚胺可以在碱性处理后分离,也可以在酸性处理后容易地转化为醛。通过在一锅反应中加入硅烷和 Hantzsch 酯氢化物,可以通过顺序还原胺化获得胺部分。而且,