Termite-Repellent Activity and Chemical Composition of West Indian Mahogany Wood, (Swietenia Mahagoni Jacq.) with Special Reference to the P2 Fraction

Abstract

1. Serial extraction of West Indian mahogany wood with selective solvents was performed. 2. The petroleum ether extract was the only fraction to exhibit promising termite-repellent activity. 3. Mahogany blocks subjected to petroleum ether extraction became susceptible to termite attack. 4. A waxy substance (P2 fraction) separated from the petroleum ether extract at times showed high termite-repellent activity. The termite-repellent principle in the P2 fraction seems to be a labile one, as the termite-repellent activity varied greatly from batch to batch. 5. The P2 fraction is a mixture of two major components and of at least a third minor one. As far as we have been able to determine this mixture, at the elemental level, contains carbon, hydrogen, and oxygen only, while esters have been the only compounds definitely characterized at the structural level.

Notes- Isolation of Cycloeucalenol from West Indian Mahogany Wood

“…Its composition and properties have been studied and reported elsewhere. 2 The supernatant oil was filtered and 100 g. saponified with 150 ml. of 51V alcoholic KOH.…”