CBSE Class 11-science Answered
sir what is the basis for the priority of naming functional groups?
Asked by naveen.mohandas | 01 Feb, 2012, 09:18: PM
Expert Answer
Functional Group Priorities in Organic Nomenclature
| Group | As a substituent: | ||
| from highest to lowest priority: | examples: | ||
| onium ion |
|
||
| carboxylic acid |
|
carboxy |
|
| sulfonic acid |
|
sulfo |
|
| anhydride |
|
||
| ester |
|
alkoxycarbonyl |
|
| acid chloride |
|
chloroformyl |
|
| amide |
|
amido or carbamoyl |
|
| nitrile |
|
cyano |
3-cyanopentanoic acid |
| Group | As a substituent: | ||
| aldehyde |
|
oxo or formyl |
4-oxobutanoyl chloride
4-formylcyclohexanecarbonitrile |
| ketone |
|
oxo |
methyl 3-oxopentanoate |
| alcohol |
|
hydroxy |
3-hydroxycyclopentanone |
| phenol |
|
||
| thiol |
|
mercapto | |
| amine |
|
amino |
2-aminophenol |
| peroxide |
|
peroxo | |
| organometallic |
|
| Group | As a substituent: | ||
| alkene |
|
alken or alkenyl |
3-butenal |
| alkyne |
|
alkynyl | |
| ether |
|
alkoxy |
6-methoxy-3-heptene |
| halogen |
|
halo |
4-bromo-2-pentyne |
| nitro |
|
nitro |
2-nitrotoluene
|
Answered by | 03 Feb, 2012, 10:38: AM
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