Carboxylic Acids

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Carboxylic Acids
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???????????? ????? ?? ???? COOH
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Carboxyl Group

• Carboxylic acids contain the carboxyl group on
  carbon 1.
• O
• ??
• CH3 COH CH3COOH
• carboxyl group

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Carboxylic acids R-COOH, R-CO2H, Common
names HCO2H ??? ?????formic acid L. formica
ant CH3CO2H ??? ???? acetic acid L. acetum
vinegar CH3CH2CO2H propionic acid G. first
salt CH3CH2CH2CO2H ??? ??????butyric acid L.
butyrum butter CH3CH2CH2CH2CO2H valeric acid L.
valerans
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Naming Rules ????? ???????

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5 4 3 2 1 CCCCCO d ?
ß a used in common names
IUPAC
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??? ???? ??????? ???????? di ??????
dicarboxylic acids HOOC-COOH oxalic
acid HO2C-CH2-CO2H malonic acid HO2C-CH2CH2-CO2H
succinic acid HO2C-CH2CH2CH2-CO2H glutaric
acid HOOC-(CH2)4-COOH adipic acid HOOC-(CH2)5-COO
H pimelic acid
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special names
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Learning Check ???? ???

• Give IUPAC and common names
• A. CH3COOH
• CH3
• B. CH3CHCOOH

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Solution ????

• A. CH3COOH
• ethanoic acid acetic acid
• CH3
• B. CH3CHCOOH
• 2-methylpropanoic acid
• ?-methylpropionic acid

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• RCH2OH 2O ? RCOOH

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Esterification reactions ??????? ????????

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Some Esters and uses ????? ??? ??? ????????
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THE END

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