2-Substituted-4-quinolones 2 and the corresponding 2,3-dihydro-2-substituted-4-quinolones 3 have been obtained by reduction with CO at 170 °C and 30 atm of 2-nitrochalcones 1, catalysed by Ru3(CO)12 with DIAN-Me as co-catalyst in ethanol–water.
通过在170°C和30个大气压下用CO还原2-氮基
查尔酮1,得到2-取代-4-
喹啉2及相应的2,3-二氢-2-取代-4-
喹啉3,反应以Ru3(CO)12为催化剂,DIAN-Me作为助催化剂,在
乙醇-
水中进行。