Question
Thu February 17, 2011 By: Amitha N

pls tell me the priority order of each group during naming of compounds

Expert Reply
Fri February 18, 2011
Dear Student
 
PriorityFunctional groupFormulaPrefixSuffix
1 Cations
   e.g. Ammonium
 
–NH3+
-onio-
ammonio-
-onium
-ammonium
2 Carboxylic acids
–COOH

carboxy-

-oic acid
3 Carboxylic acid derivatives
Esters
Acyl halides
Amides

 
–COOR
–COX
–CONH2

 
R-oxycarbonyl-
halidealcanoyl-
carbamoyl-

 
-R-oate
-oyl halide
-amide

4 Nitriles
   Isocyanides
–CN
–NC
cyano-
isocyano-
-nitrile
isocyanide
5 Aldehydes
   
–CHO

formyl-

-al
6 Ketones

>CO
oxo-

-one

7 Alcohols

–OH

hydroxy-

-ol

8 Hydroperoxides


-OOH


hydroperoxy-


-peroxol

9 Amines
   Imines
   Hydrazines
–NH2
=NH
–NHNH2
amino-
imino-
hydrazino-
-amine
-imine
-hydrazine
10 Ethers
  
–O–

-oxy-

 
11 Peroxides
   Disulfides
–OO–
–SS–
-peroxy-
-disulfanyl-
 
 
 
We hope that clarifies your query.
Regards
Team
Topperlearning
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