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Esters

 

Nomenclature-Esters (R-CO-O-R') are named as alkyl derivatives of carboxylic acids. The alkyl (R') group is named first (the carbon chain from the alcohol).  The R-CO-O part is then named as a separate word based on the carboxylic acid name, with the ending changed from -oic acid to -oate.

**to see names highlight the box next to the structure

NAMESCondensed STRUCTURE
methyl pentanoateCH3CH2CH2CH2COOCH3
methyl butanoateCH3CH2CH2COOCH3
methyl propanoateCH3CH2COOCH3
methyl ethanoateCH3COOCH3
ethyl pentanoateCH3CH2CH2CH2COOCH2CH3
propyl pentanoateCH3CH2CH2CH2COOCH2CH2CH3
butyl pentanoateCH3CH2CH2CH2COOCH2CH2CH2CH3
pentyl pentanoateCH3CH2CH2CH2COOCH2CH2CH2CH2CH3
hexyl pentanoateCH3CH2CH2CH2COOCH2CH2CH2CH2CH2CH3

 

NAMESExpanded STRUCTURE
propyl propanoate
ethyl propanoate
ethyl ethanoate
methyl ethanoate

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