Regioselective Passerini and Passerini-Knoevenagel Reactions with<i>vic</i>-Diketo Amides
作者:Jan Roßbach、Klaus Harms、Ulrich Koert
DOI:10.1002/ejoc.201301548
日期:2014.2
The Passerini reaction of vic-diketo amides with a variety of isocyanides and carboxylic acids has been examined. α-Acyloxy β-keto carboxamides were formed regioselectively as the major products. For the Passerini reactions with electron-withdrawing-group-substituted acetic acids, a one-pot Passerini–Knoevenagel reaction was accomplished by the addition of triethylamine.
已经研究了 vic-二酮酰胺与各种异氰化物和羧酸的 Passerini 反应。α-酰氧基β-酮甲酰胺作为主要产物区域选择性地形成。对于与吸电子基团取代的乙酸的 Passerini 反应,通过添加三乙胺完成一锅 Passerini-Knoevenagel 反应。