Question

After synthesizing ethyl butanoate you run a 1H NMR to determine the purity of your product. Which of the following 1H NMR spectra shows formation of the pure product?

After synthesizing ethyl butanoate you run a 1H NMR to determine the purity of your product. Which of the following 1H NMR spectra shows formation of the pure product? 1H NMR (CDCI3, 90 MHz, 21C) 4.13 (d, 2H), 2.27 (t, 2H), 1.65 (sept, 1H), 0.96 (d, 6H) 1H NMR (CDCI3, 90 MHz, 21C) 6.52 (d, 2H) 4.13 (t, 1H), 2.27 (t, 2H), 1.65 (t, 3H) 1H NMR (CDCI3, 90 MHz, 21C) 4.13 (q, 2H), 2.27 (t, 2H), 1.65 (m, 2H), 1.26 (t, 3H), 0.96 (t, 3H) 1H NMR (CDCI3, 90 MHz, 21C ) 4.13 (d, 2H), 2.27 (d, 2H), 1.65 (d, 2H), 1.26 (t, 3H), 0.96 (t, 3H)

Answer 1

Ans H NR eyatancate a) d) o-cCHa E CC) (b) CC-CH "a protons at 4-13 ,2H) b rotons at c rotons at 1.65 dprotons at 1.26 (t, 3H) 'e protons at 0.76 (t, 3H). 2. 27 t, 2) m, 2H) Oplion scorseet ansuer