methyl 4-(2,4-dichlorophenyl)-6-methyl-2-phenyl-1,4-dihydropyrimidine-5-carboxylate 在
二氧化锰 silica gel 、
ethyl acetate n-hexane 作用下,
以
甲苯 为溶剂,
反应 14.0h,
以to give methyl 4-(2,4-dichlorophenyl)-6-methyl-2-phenylpyrimidine-5-carboxylate (150 mg, 23% for 2 steps) and 4-(2,4-dichlorophenyl)-6-methyl-2-phenylpyrimidine-5-carboxylic acid (100 mg, 15% for 2 steps)的产率得到methyl 4-(2,4-dichlorophenyl)-6-methyl-2-phenylpyrimidine-5-carboxylate