2-amino-4-(4-nitro-2-trifluoromethyl-phenyl)-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylic acid ethyl ester 、
乙醇 反应 2.0h,
以of 2-trifluoromethyl-4-nitrobenzaldehyde, 5.6 g of cyclohexane-1,3-dione and 6.5 g of amidinoacetic acid ethyl ester in 250 ml of ethanol of 2 hours, 2-amino-4-(2-trifluoromethyl-4-nitrophenyl)-1,4,5,6,7,8-hexahydro-5-oxoquinoline-3-carboxylic acid ethyl ester of melting point 264°C (ethanol) is obtained的产率得到4-硝基-2-(三氟甲基)苯甲醛