Question

1)Draw a balanced equation for the reaction that occurs between water and unreactive propanoyl.

2)draw a balanced equation for the reaction that occurs between propanoic acid and sodium hydroxide

3) how many peaks would appear in the proton- decoupling 13C-NMR spectrum of isobutyl propanoate

4) how many peaks would appear in the proton decoupling 13C-NMR spectrum of triphenylmethanol?

a blackboard towson edu methyl anthranilate isopentyl acetate geranyl acetate methyl salicylate (banana) n-butyl acetate n-octyl acetate isobutyl formate ethyl lactate (orange) (apple) (raspberry) isobutyl propanoate methyl phenylacetate allyl linallyf butyrate (rum) CH3 HCI propanoyl chloride isobutyl alcohol isobutyl propanoate

Answer 1

1) Drawn below is the reaction of propanoyl chloride with water to form propanoic acid

H2O attacks the carbonyl carbon center and Cl- leaves.

2) The reaction between propanoic acid and a base as NaOH gives salt. This is a typical acid-base neutralization reaction.

3) Number of peaks in the 13C NMr spectrum of isobutyl propanoate would be six.

One of 2CH3's os isobutyl group, one for CH of isobutyl group, one of CH2 of isobutyl group

one of CH3 of propanoate, one of CH2 of propanoate, one of C=O group of propanoate

4) Number of peaks for triphenylmethanol in 13C NMR spectrum would be five

Four for carbon of phenyl group

one of quarternay carbon to which three Phenyl and one -OH are attached

Figures

Drawn below is the reaction of propanoyl chloride with water to form propanoic acid H2O attacks the carbonyl carbon center and Cl- leaves. The reaction between propanoic acid and a base as Na OH gives salt. This is a typical acid-base neutralization reaction. Number of peaks in the 13C N Mr spectrum of isobutyl propanoate would be six. One of 2CH3's o s isobutyl group, one for CH of isobutyl group, one of CH2 of isobutyl group one of CH3 of propanoate, one of CH2 of propanoate, one of C = O group of propanoate Number of peaks for tri phenyl methanol in 13C NMR spectrum would be five Four for carbon of phenyl group one of quarternay carbon to which three Phenyl and one -OH are attached Figures reaction between propanoyl and water CI ? ? reaction between propanoic acid and Na OH ? ? O Na