A diastereoselective synthesis of (1SR,3SR,7RS)-3-methyl-α- himachalene, the sex pheromone of the sandfly, Lutzomyia longipalpis (Diptera: Psychodidae)

Dufour, S., Castets, P., Pickett, John A. ORCID: https://orcid.org/0000-0002-8386-3770 and Hooper, A. M. 2012. A diastereoselective synthesis of (1SR,3SR,7RS)-3-methyl-α- himachalene, the sex pheromone of the sandfly, Lutzomyia longipalpis (Diptera: Psychodidae). Tetrahedron 68 (25) , pp. 5102-5108. 10.1016/j.tet.2012.04.037

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Abstract

The sandfly, Lutzomyia longipalpis, vectors the causative agent of visceral leishmaniasis in the New World. The male-produced pheromone, (1S,3S,7R)-3-methyl-α-himachalene provides an opportunity for pest managing this pest problem by influencing the behaviour of the biting female. Previous syntheses of the pheromone have all focused on a late stage Diels–Alder cyclisation to generate the bicyclic cis-himachalene skeleton. By adopting a new retrosynthetic analysis that depends on an early stage Diels–Alder cyclisation, the number of steps has been reduced to ten, of which five are catalytic and so provides access to quantities suitable for field-scale experiments.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Chemistry
Publisher:	Elsevier
ISSN:	0040-4020
Date of Acceptance:	10 April 2012
Last Modified:	03 Feb 2026 12:01
URI:	https://orca.cardiff.ac.uk/id/eprint/184316

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