J. Rovirosa et al., STRUCTURE AND INSECTICIDAL ACTIVITIES OF CHAMIGRENE DERIVATIVES, Boletin de la Sociedad Chilena de Quimica, 39(3), 1994, pp. 193-198
Pacifenol, a halogenated sesquiterpene was isolated from Laurencia cla
viformis. Minor chemical transformations of pacifenol gave some deriva
tives whose structures were determined by its spectral properties and
by X-ray diffraction analysis in derivatives 2 and 6, respectively. Th
e effect of these compounds on the feeding behaviour of the aphid Schi
zaphis graminum was studied.