Testing Water Samples for Pesticides One of the problems that Lance monitored was...

Testing Water Samples for Pesticides

One of the problems that Lance monitored was water pollution by insecticides that exceed government regulations. These insecticides are made by organic synthesis, in which smaller molecules are combined to form larger molecules, in a stepwise fashion.

In one step in the synthesis of the insecticide Sevin, naphthol reacts with phosgene as shown.