反应详情

Upon heating a solution of 6.1 g of biphenyl-2-aldehyde, 3.8 g of cyclohexane-1,3-dione and 5.1 g of amidinoacetic acid ethyl ester in 100 ml of ethanol for 1 hour, 2-amino-4-(biphenyl-2-yl)-1,4,5,6,7,8-hexahydro-5-oxoquinoline-3-carboxylic acid ethyl ester of melting point 248°C (ethanol) is obtained.