Methyl 2,2-dimethylpropanoate

Methyl 2,2-dimethylpropanoate fCH CCC CJh has two peaks in its ]H NMR spectrum. What are their approximate chemical shifts ... 

Look at the NMR spectrum of methyl 2,2-dimethylpropanoate in Figure 13.12. There are two peaks, corresponding to the two kinds of protons, but the peaks aren t the same size. The peak at 1.2 5, due to the (CH3)3C- protons, is larger than the peak at 3.7 8, due to the -OCH3 protons. 

Figure 13.12 The 1H NMR spectrum of methyl 2,2-dimethylpropanoate. Integrating the peaks in a "stair-step" manner shows that they have a 1 3 ratio, corresponding to the ratio of the numbers of protons (3.91 responsible for each peak.

Methyl 2,2-dimethylpropanoate, H NMR spectrum of, 459 Methyl acetate, electrostatic potential map of, 791... 

Methyl- 1-cyclopentene 3- Methyl-1-cyclopentene 4- Methyl-1-cyclopentene Methyl cyclopropanecarboxylate 2-Methyldecane 4-Methyldecane Methyl decanoate Methyl dichloroacetate Methyldichlorosilane Methyl 2,2-dimethylpropanoate 2-Methyl-1,3-dioxane 4-Methyl-1,3-dioxane 4-Methyl-l,3-dioxolan-2-one 9.62... 

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