Anhydrides: Difference between revisions
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Anhydrides are the chemical reaction of two carboxylic acids, which produces an acid anhydride and a water molecule. <br><br> | Anhydrides are the chemical reaction of two carboxylic acids, which produces an acid anhydride and a water molecule. <br><br> | ||
CH<sub>3</sub>CH<sub>2</sub>COOH + CH<sub>3</sub>CH<sub>2</sub>COOH → CH<sub>3</sub>CH<sub>2</sub>COOCOCH<sub>2</sub>CH<sub>3 </sub>+ H<sub>2</sub>O<br>propanoic acid + propanoic acid → hexanoic anhydride (propanoic propanoic anhydride) | CH<sub>3</sub>CH<sub>2</sub>COOH + CH<sub>3</sub>CH<sub>2</sub>COOH → CH<sub>3</sub>CH<sub>2</sub>COOCOCH<sub>2</sub>CH<sub>3 </sub>+ H<sub>2</sub>O<br>propanoic acid + propanoic acid → hexanoic anhydride (propanoic propanoic anhydride) | ||
<br>Acid anhydrides are significant in Organic Chemistry as acid anhydrides are involved in esterification with alcohol as a reagent without an catalyst to form an ester. <references />N. Goaly https://chemrevise.files.wordpress.com/2018/11/6-1-3-revision-guide-carboxylic-acids-and-esters.pdf view online 05/12/2018<references /> | <br>Acid anhydrides are significant in Organic Chemistry as acid anhydrides are involved in esterification with alcohol as a reagent without an catalyst to form an ester. [ <references />N. Goaly https://chemrevise.files.wordpress.com/2018/11/6-1-3-revision-guide-carboxylic-acids-and-esters.pdf view online 05/12/2018<references /> ] | ||
(C<sub>2</sub>H<sub>5</sub>CO)<sub>2</sub>O + CH<sub>3</sub> CH<sub>2</sub>OH → CH<sub>3</sub>CH<sub>2</sub>COOH + CH<sub>3</sub>CH<sub>2</sub>COCH<sub>2</sub>CH<sub>3</sub><br>hexanoic anhydride + ethanol → propanoic acid + ethyl propanoate<br>propanoic propanoic anhydride | |||
(C<sub>2</sub>H<sub>5</sub>CO)<sub>2</sub>O + CH<sub>3</sub> CH<sub>2</sub>OH → CH<sub>3</sub>CH<sub>2</sub>COOH + CH<sub>3</sub>CH<sub>2</sub>COCH<sub>2</sub>CH<sub>3</sub><br>hexanoic anhydride + ethanol → propanoic acid + ethyl propanoate<br>propanoic propanoic anhydride | |||
<br>Esters are used for industrial purposes as such as flavouring and perfumes. | <br>Esters are used for industrial purposes as such as flavouring and perfumes. | ||
Revision as of 13:49, 5 December 2018
Anhydrides are the chemical reaction of two carboxylic acids, which produces an acid anhydride and a water molecule.
CH3CH2COOH + CH3CH2COOH → CH3CH2COOCOCH2CH3 + H2O
propanoic acid + propanoic acid → hexanoic anhydride (propanoic propanoic anhydride)
Acid anhydrides are significant in Organic Chemistry as acid anhydrides are involved in esterification with alcohol as a reagent without an catalyst to form an ester. [ N. Goaly https://chemrevise.files.wordpress.com/2018/11/6-1-3-revision-guide-carboxylic-acids-and-esters.pdf view online 05/12/2018 ]
(C2H5CO)2O + CH3 CH2OH → CH3CH2COOH + CH3CH2COCH2CH3
hexanoic anhydride + ethanol → propanoic acid + ethyl propanoate
propanoic propanoic anhydride
Esters are used for industrial purposes as such as flavouring and perfumes.