無(wú)色方晶(乙酸乙酯-己烷),熔點(diǎn)68～70°。不溶于己烷和石油醚,易溶于氯仿和乙酸乙酯,難溶于甲醇和
乙醇。UV λEtOHmax nm(logε):220(4.39),247(4.44),258(sh,4.38),318(3.93),331.5(4.02),346(3.93),363(3.77)。IR λKBrmaxμ:6.06(C=O),6.15(C=C),6.25,6.26,6.34,6.40,6.50,6.75(芳環(huán))。MSm/e(%):271(M+,38.5),256(M+-15,100),241(M+-30,8.0),228(M+-43,2.8),212(2.8),198(1.8),192(1.4),184(1.1),149(2.8),135.5(271++,1.1),128(2.8),120.5(240++,1.8),NMR(CDCl3)δ:3.85和3.90(6H,s,N-CH3,OCH3),1.5(6H,s,同碳二甲基),5.55和6.73(2H,dd,J=10.兩個(gè)雙鍵氫),7.03(dd,J=3,鄰位芳?xì)?,7.14(t,J=7,間位芳?xì)?,7.59(dd,J=3,對(duì)位芳H)。
