Anhydrides

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&nbsp;Anhydrides are the chemical reaction of two carboxylic acids, which produces an acid anhydride and a water molecule. <br><br>  
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Anhydrides are the chemical reaction of two [[carboxylic acid|carboxylic acids]], which produces an [[acid anhydride|acid anhydride]] and a [[water|water]] [[molecule|molecule]]. <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&nbsp;</sub>+ H<sub>2</sub>O<br>propanoic acid + propanoic acid → hexanoic anhydride (propanoic propanoic anhydride)  
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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&nbsp;</sub>+ H<sub>2</sub>O<br>[[propanoic acid|propanoic acid]] + [[propanoic acid|propanoic acid]] [[hexanoic anhydride|hexanoic anhydride]] ([[propanoic propanoic 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. [&nbsp;<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 />&nbsp;]
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Acid anhydrides are significant in organic chemistry as acid anhydrides are involved in [[esterification|esterification]] with alcohol as a reagent without an [[catalyst|catalyst]] to form an [[ester|ester]]<ref>N. Goaly https://chemrevise.files.wordpress.com/2018/11/6-1-3-revision-guide-carboxylic-acids-and-esters.pdf view online 05/12/2018</ref>.
  
(C<sub>2</sub>H<sub>5</sub>CO)<sub>2</sub>O + CH<sub>3</sub>&nbsp;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
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(C<sub>2</sub>H<sub>5</sub>CO)<sub>2</sub>O + CH<sub>3</sub>&nbsp;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>Esters are used for industrial purposes as such as flavouring and perfumes.
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<sub></sub>hexanoic anhydride + ethanol → propanoic acid + ethyl propanoate<br>
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propanoic propanoic anhydride
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Esters are used for industrial purposes as such as flavouring and perfumes.  
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=== References ===
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<references />

Latest revision as of 09:52, 8 December 2018

Anhydrides are the chemical reaction of two carboxylic acids, which produces an acid anhydride and a water molecule.

CH3CH2COOH + CH3CH2COOH → CH3CH2COOCOCH2CH+ H2O
propanoic acid + propanoic acidhexanoic 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[1].

(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.

References

  1. N. Goaly https://chemrevise.files.wordpress.com/2018/11/6-1-3-revision-guide-carboxylic-acids-and-esters.pdf view online 05/12/2018
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