Question

PROBLEMS L 445 of the H the structure of the compound Hand C spectra to the structure you 10) that gives the followinTH place carbons with signals in the propose. Use letters to comp s ur I R ani e ( F 949-951). Asignal s in the H NMR spectrum, and FIGURE 9.49 The 'H NMR spectrum simulated for Problem 9.43. 214 214 8pm FIGURE 9.50 A simulated broadband proton-decoupled SC NMR spectrum for Problem 9.43 CH .CH 180 160 140 120 80 60 40200 100 6c ppm) FIGURE 9.51 The IR spectrum for Problem 9.43. (SDES, National Institute of Advanced Industrial Science and Technology 1000 500 4000 3000 2000 1500 Wavenumber(cm)

Answer 1

Here No. Of H-atom in the given formula doesn't match with the NMR H-atom count. but I m providing the details of the compound based on the spectral datas.

IR • peak a 3100 cm = cesp 2) - Stretch a peak w 2000 an' => c (SP3) lo stretch o peak ~ 12go and a " stretch (may ofer) • peak ~ 1600 ant a cac stretch (conjugated) o peak N 1100 an c-o stretch. 'H NMR tecno-cho Ha-N2.8 (s, 3H) H = ~3.5 (8, 214) He = N7.0 (d, 2 lt) Add =n6.8 (d, 2H) He = 3.7 (s, 3H) onchig 4 & chordoz 6s - CHg c': c²= N180 ppm c² = ~ 48ppm c = ~ 128 ppm c = ~ 130 ppm (20) co = ~118 ppm (2c) (7 = ~160 prom 8 = ~52 ppm