Date of Award

7-1936

Document Type

Thesis

Degree Name

Master of Science (MS)

First Advisor

L. C. Heckert

Keywords

Insecticides

Abstract

It was observed that certain compounds which occur in nature contain in the molecule a group of atoms arranged as a furan nucleus. This is exemplified in rotenone, certain other compounds extracted from derris and cube root, and in the fish-poisoning plants studied by Spath.

This study was undertaken in order ti determine if toxicity towards insects was an inherent property of the furanic nucleus. In particular, it was decided to test the toxicity of certain esters of furoic acid and furfuryl alcohol against flies. Accordingly, a number of typical esters were syntesized and their activities determined.

In no case did any ester show appreciable insecticidal activity.

This indicates that the toxicity of the naturally occurring, activity compunds is probably not a function of the furanic nucleus but the whole molecular aggregate or some other group of atoms.

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