(a)
Interpretation:
The equation representing the reaction of butanoic anhydride with propanol has to be written and the IUPAC name of the products has to be provided.
Concept Introduction:
Acid anhydrides are compounds with the formula,
Acid anhydrides react with an alcohol to produce an ester and a
The general reaction of acyl group transfer reaction between an alcohol and an acid anhydride is written as,
The acyl group of the acid anhydride is transferred to the oxygen of the alcohol and the products of esters are produced. The carboxylic acid product is omitted.
Nomenclature of Esters
The simplest method to name an ester starts by identifying the carboxylic acid and alcohol.
The first part of the name of an ester is the alkyl or aryl group of the alcohol
- The name of the parent alcohol is identified and the name of the corresponding alkyl or aryl group is written.
The second part of the name is derived from the carboxylic acid
- The name of the parent carboxylic acid is identified and the suffix -ic is replaced with –ate.
(b)
Interpretation:
The equation representing the reaction of pentanoic anhydride with propanol has to be written and the IUPAC name of the products has to be provided.
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
The equation representing the reaction of methanoic anhydride with propanol has to be written and the IUPAC name of the products has to be provided.
Concept Introduction:
Refer to part (a).
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