核磁培训同济大学研究生分析化学课程.pptx

核磁共振谱核磁共振谱于辉于辉同济大学化学系同济大学化学系65982298-807(1)4-碘甲基-5,5-二甲基-二氢呋喃-2-酮(2e)pale yellow oil.1H NMR (300 MHz,CDCl3):1.31（3H,s）,1.51(3H,s),1.95-1.97(1H,m),2.41-2.50(1H,m),2.72-2.75(1H,m),2.82-2.90(1H,m),3.09(1H,dd,J=10.2,9.6 Hz),3.25(1H,dd,J=10.2,5.1 Hz),EIMS:m/z(relative intensity)254(M+,6),239(7),191(6),173(4),127(34),69(89),41(100).Anal.calcd for C7H11IO2:C,33.09;H,4.37.Found:C,33.55;H,4.60.核磁数据表述方式J.Org.Chem.1997,62,7513