Chemistry Reference
In-Depth Information
drive the reaction toward the production of more ester product formed by
dehydration synthesis. Additionally, the reaction occurs best when heated.
As the solution is warmed, water evaporates, which also helps to increase
the ester production.
Connections
Esters are only one type of organic chemical that can be detected by
senses. Animals use chemical signals called
pheromones
to communicate
and trigger responses in others within their species. Pheromones are a
type of organic compound, generally composed of different combinations
of ring structures, esters, and hydrocarbons. These specialized chemicals
are used for a variety of purposes, including attracting mates, sending
warnings to others, marking trails to food sources, and calling others to
aggregate in a certain area.
The structure of a pheromone can vary greatly depending on the species
and the specific response that it triggers, but most are fairly small
molecules so that they can be easily produced by glands and transmitted
great distances through the air. Pheromones are commonly synthesized
artificially as attractants or repellants that can be used as a method of
pest control.
Figure 3
A pheromone is used to lure boll weevils into traps like this one.
