Question

2. For each of the following compounds, label hydrogens in equivalent environments, indicate the integration value and multiplicity for each signal а. b. с.

Answer 1

there are 4 equivalent protons a : 1H split into doublet according to n+1 rule (n=number of neighboring protons) b: 1H split into doublet c: 2H split into triplet d: 3H split into quartet there are 3 distinct signal b a: 3H split into triplet according to n+1 rule (n=number of neighboring protons) b: 2H split into quartet c: 5H split into complex multiplet there are 7 signal (fand g are diasterotopic) ec a: 3H split into triplet according to n+1 rule (n=number of neighboring protons) b: 2H split into sextet c: 2H split into quintet d: 2H split into doublet of triplet e: 1H split into triplet fand g: both will give singlet