Chemistry Reference
In-Depth Information
Benzene with five hydrogens replaced are
pentasubstituted
, and when all six
hydrogens are replaced, the benzene is
hexasubstituted
.
Polymethyl
-substituted benzene isomers usually are referred to by trivial
names such as pseudocumene (1,2,4-trimethylbenzene), mesitylene (1,3,5-
trimethylbenzene), and durene (1,2,4,5-tetramethylbenzene). These names
were given to these compounds when aromatic compounds were first isolated
from coal and their structures were as yet not proven.
