The unknown compound XX (C10H1802) gives the following proton and carbon NMR spectra. Significant IR peaks were also observed. Нас на What is compound XX? 2M 3H не 6 5 4 3 2 200 150 100 IR: 3148, 2950, 1690, 1620, 1209, and fingerprint cm¨¹. HA = 1H, J= 16 Hz (d), 2 Hz (t) HB 1H, J=16 Hz (d), 7 Hz (t) Hc 2H, J=7 Hz (d), 6 Hz (t), 2 Hz (d) 50 0 9H

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