Jiang Hong
2006
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Journal
Journal of Xuzhou Normal University
Abstract
A series of methyl 2,7,7-trimethyl-5-oxo-4-aryl1,4,5,6,7,8-hexahydroquinoline-3-carboxylate were synthesized by the reaction of aromatic aldehydes,dimedone and methyl acetoacetate using ammonium acetate as catalyst in glycol under microwave irradiation with 82%~98% yields in 4~6 min.Compared with the previous method,this procedure has advantages of short reaction time,high yields,simple workup and environmental friendliness.NMR(~(13)CNMR,DEPT135) methods were used to elucidate the structure of methyl 2,7,7-trimethyl-5-oxo-4-(4-hydroxyphenyl-3-methoxy)-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate.