IUPAC NEET
IUPAC
NOMENCLATURE
TAKE IT EASY
¥
☒:¥
Word root:- Represent total no. of C-atoms in longest / principal /
main C - chain.
nn
Word root Word root
1
2
3
4
5
6
7
8
9
10
Meth
Eth
Prop
But
Pent
Hex
Hept
Oct
Non
Dec
1 Suffix / Primary Suffix:-
Represents Saturation / Unsaturation present in C-chain .
— ane , —> ene , —> yne
1 Prefix / Primary prefix:-
Represents nature of parent C-chain.
Open chain Cyclo
Document Summary
Word root:- represent total no. of c-atoms in longest / principal / main c - chain. Represents saturation / unsaturation present in c-chain . Ane , > ene , > yne. Represents side chains / substituents attached with main c-chain. 2 p + 1 p + w. r + 1 s + 2 s. How to select principal c - chain? r r r. Numbering:- p. c. c > multiple bond > lowest set of locents > 6-bromo 3 methylhex-2ene (7) (8) o r (cid:15482) 3[1-bromo ethyl]2,4 dimethyl hexa 1,4 diene (9) (10) Complex substituent :- substituted substient is called complex substituent. r. If carbon aldehyde part of pcc, then oxo. If terminal grp consider as substituent,then except c- of aldehyde no other c is count. Priority order :- principal functional grp > multiple bond > no. of carbon ring (1) (2) 5-carboamyl cyclo hex-2- ene carbonyl bromide. (15) (16) If different , then write in alphabetical order.
