Chemistry 2223B Lecture Notes - Antiviral Drug, Coenzyme A, Aldehyde
7 Mar 2014
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Chemistry 2213a fall 2012 western university. Derivatives of carboxylic acids: structure and nomenclature. We"re interested in four derivatives, each of which has a group bonded to an acyl carbon: 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. 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. Xoracylhalideor"oresterooror"anhydridenr"2oramideohoch3aceticacidoch2ch3och3ethylacetateooooa lactonea lactone for acid halides, change ic acid to yl halide. For symmetrical anhydrides, change acid to anhydride. Anhydrides are usually formed by coupling two carboxylic acids with the loss of water (hence the name anhydride). Cyclic anhydrides are formed by heating dicarboxylic acids. Ohopropanoic acidclopropanoyl chlorideohoch3aceticacidooch3aceticanhydridech3oh2o hooch3hoohooohohooh2o ooo= for amides change oic acid or ic acid to amide.
