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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 17, 1987 - Issue 7
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Original Articles

A Simple and Short Synthesis of Z-6-Heneicosen-11-One and Z-1,6-Heneicosen-11-One, The Sex Pheromones of Douglas-Fir Tussock Moth

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Pages 893-900 | Published online: 05 Dec 2006
 

Abstract

Z-6-Heneicosen-11-one (1) and Z-1,6-Heneicosen-11-one (2) are the sex pheromones of the Douglas-Fir Tussock moth, ‘Orgyia Pseudo Sugata’, isolated1,2 in 1975 and 1978 respectively. In contrast with other lepidopterous pheromones, which are unsaturated C12-C14 primary alcohols or acetates, these were found to be C21 ketones. The Douglas-Fir Tussock moth is a severe defoliator of the Fir forest; consequently, considerable interest attends the synthesis of these two pheromones. A number of syntheses of these two pheromones have been reported3 amongst which is one of our synthesis using N,N-dimethyl acetone 4 hydrazone as key intermediate.

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