Treatment of N-[o-(alk-1-enyl)phenyl]-2-(methylsulfinyl)acetamides with trifluoroacetic anhydride gave 2(1H)-quinolinones or 2H-1-benzazepin-2-ones, depending upon the position of the substituents on the alkene double bond.
N-[o-(烯丙基)苯基]-2-(甲基亚砜基)乙酰胺与
三氟乙酸酐反应,根据烯烃双键上取代基的位置不同,生成2(1H)-
喹啉酮或2H-1-苯并氮杂䓬-2-酮。