Question

assign the hydrogen peaks for the given molecule.

[ppm) 7.6059 7.5911 0989 7.5810 7.5762 7.5281 7.5075 7.5032 7.4797 7.3845 7.3810 7.3611 7.3532 7.3477 7.3405 7.3332 7.3272 17.3247 7.3188 ক 60.9458- 7.3013 7.2957 7.2821 7.2751 7.2682 7.2556 7.2488 7.2431 7.2352 7.2177 7.2056 3.8440 3.8354 3.8306 3.8219 3.1284 3.1149 3.1100 6889 9960'C 8080'C 3.0683 2.7853 2.7767 11.7031 2.7583 1.6744 1.4484 699LZ 11.8017- 1.4289 1.4122 1.4032 1.3955 11.7985- 80 1.3102 1.3047 1.3002 1.3196 C962 1.2577 1.2523 1.2457 1.2407 1.2361 1.2318 1.2281 1.2213 1.2717 3.1686 89611 1.0038 0.5822 CO00'0

Answer 1

Peak at 2.7 is correspondent to Ha and at 3.1 is for Hy which are diasterotopic and due to the oxygen and the neighbouring protons are magnetically distinct. Both are doublet or triplet. Peak at 3.8 is due to He and it is doublet of doublet. Benzene ring protons are in a group. Ortho protons or the He are at 7.3 and the meta, para protons are at 7.2 ppm. He co Hoy He