Carboxylic Acids. Carboxyl Group. Carboxylic acids contain the carboxyl group on carbon 1. O CH 3 — C — OH = CH 3 — COOH carboxyl group. Naming Carboxylic Acids. Formula IUPAC Common alkan -oic acid prefix – ic acid HCOOH methanoic acid formic acid
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Carboxylic acids contain the carboxyl group on carbon 1.
CH3 —C—OH = CH3—COOH
Formula IUPAC Common
alkan -oic acid prefix – ic acid
HCOOH methanoic acid formic acid
CH3COOH ethanoic acid acetic acid
CH3CH2COOH propanoic acid propionic acid
CH3CH2CH2COOH butanoic acid butyric acid
CH3 —CH—CH2 —COOH
IUPAC 3-methylbutanoic acid
Common -methylbutryic acid
Give IUPAC and common names:
ethanoic acid; acetic acid
CH3COOH + H2O CH3COO– + H3O+
CH3COOH + NaOH CH3COO– Na+ + H2O
In an ester, the H in the carboxyl group is replaced with an alkyl group
CH3 —C—O —CH3 = CH3—COO —CH3
Esters give flowers and fruits their pleasant fragances and flavors.
CH3 —C—OH + HO—CH2CH3
CH3 —C—O—CH2CH3 +H2O
CH3 —C—O —CH3
Ethanoate methyl ethanoate (IUPAC)
(acetate) methyl acetate (common)
HCOOCH2CH3 ethyl methanoate (IUPAC)
ethyl formate (common)
ethyl butanoate (IUPAC)
ethyl butyrate (common)
Give the IUPAC and common names of the following compound, which is responsible for the flavor and odor of pears.
CH3 —C—O —CH2CH2CH3
CH3 —C—O —CH2CH2CH3
propyl ethanoate (IUPAC)
propyl acetate (common)
Draw the structure of the following compounds:
A. 3-bromobutanoic acid
B. Ethyl propionoate
CH3 CH2 COCH2CH3 CH3CH2COOCH2CH3
H—C—OH + HO—CH2CH3
CH3C—OCH2CH3 + NaOH
CH3C—O– Na++ HOCH2CH3
salt of carboxylic acid
Write the equation for the reaction of propionic acid and methyl alcohol in the presence of an acid catalyst.
CH3CH2COH + HOCH3
CH3CH2COCH3 + H2O
What are the organic products when methylacetate reacts with
A. Water and an acid catalyst?
CH3COH + HOCH3
B. CH3CO– K+ + HOCH3