Advices For Studying Organic Chemistry

CH 3 COH

CH 3

CH (^3)
CH 3 CCH 2
CH 3
CH 3
OH
CH^3 CHCH^2
CH 3
OH
tert-Butyl alcohol Isobutyl alcohol Neopentyl alcohol
3) Alcohols containing two hydroxyl groups are commonly called gylcols. In
IUPAC substitutive system they are named as diols.
CH 2 CH 2
OH OH
CH 3 CH CH 2
OH OH
CH 2 CH 2 CH 2
OH OH
Ethylene glycol Propylene glycol Trimethylene glycol
1,2-Ethanediol 1,2-Propanediol 1,3-Propanediol
Common
Substitutive

4.4 NOMENCLATURE OF CYCLOALKANES

4.4A MONOCYCLIC COMPOUNDS

1. Cycloalkanes with only one ring:

H 2

C

H 2 CCH 2

=

H 2 C

H 2 C

CH

2

CH 2

CH 2

=

Cyclopropane Cyclopentane

1) Substituted cycloalkanes: alkylcycloalkanes, halocycloalkanes,

alkylcycloalkanols
2) Number the ring beginning with the substituent first in the alphabet, and
number in the direction that gives the next substituent the lower number
possible.
3) When three or more substituents are present, begin at the substituent that leads
to the lowest set of locants.