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14. Derivatives of Carboxylic Acids

14. Derivatives of Carboxylic Acids - 2010 Department of...

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© 2010 Department of Chemistry, The University of Western Ontario 14.2 14. Derivatives of Carboxylic Acids (text 15.1 15.6) A. Structure and Nomenclature We’re interested in four de rivatives, each of which has a group bonded to an acyl carbon: X O R acyl halide OR' O R ester O O R O R' anhydride NR' 2 O R amide The names of the derivatives come from the carboxylic acid. For esters, change ic acid to ate , preceded by the name of the alkyl group on the ester alcohol group. OH O CH 3 acetic acid OCH 2 CH 3 O CH 3 ethyl acetate Cyclic esters are lactones and are designated using Greek letters ( , , , , , etc.), depending on the number of carbon atoms that the ester oxygen is from the carbonyl. O O O O a lactone a lactone
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