Question

For the protons labeled Ha and Ho in the structure below, predict the characteristics of their signals in the H NMR spectrum: the approximate chemical shift, the splitting pattern, and the integration value Approximate chemical shift Splitting Integration value O 1H O 2H 03H O 4H H NMR signal1 ppm for Ha O 2 ppm O 3-4 ppm O 5-6 ppm O 7-8 ppm O singlet O doublet O triplet O quartet O septet O multiplet O 6H H NMR signalppm for H O singlet O doublet O triplet O quartet O septet O multiplet O 1H O 2 ppm O 3-4 ppm 03H O 4H 5-6 ppm 7-8 ppm O O 6H

Answer 1

For the protons labeled Ha and H in the structure below, predict the characteristics of their signals in the 1H NMR spectrum: the approximate chemical shift, the splitting pattern, and the integration value appear as 2H, triplet around 2.3 ppm Approximate chemical shift Integration value Splitting H NMR signal for Ha O singlet O doublet O triplet O quartet 1 ppm 1H 2 ppm 3-4 ppm 02H O 5-6 ppm O 7-8 ppm 4H septet O multiplet H NMR signal for Hb 1 ppm 2 ppm 3-4 ppm O singlet O, doublet triplet 1H 2H зн appear as TH, septet around 2.8-2.9 ppm O 5-6 ppm Oquartet O septet O multiplet 7-8 ppm Both Ha and Hb protons are attached with Catom which is adjacent to N atom, So they will appear in range of 2-3 ppm in 1 H NMR Moreover multiplicity will be given by the number nt1 where n in the number of H atoms on adjacent atoms