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304 Notes The Stereoisomers of Nerolidol: Separation, Analysis and Olfactoric Properties Vera Schubert, Armin Dietrich, Thomas Ulrich, Armin Mosandl Institut für Lebensmittelchemie, Universität Frankfurt, Robert-Mayer-Str. 7 - 9 , D-W -6000 Frankfurt/Main, Bundesrepublik Deutschland Z. Naturforsch. 47c, 304-307 (1992); received June 18, 1991 Nerolidol, Enantiospecific GC-Analysis, Diastereomeric Camphanoates, Olfactoric Properties The sesquiterpenoic alcohol nerolidol was separated into its 4 stereoisomers by MPLC of the diastereomeric (1 5

Nerolidol, an Antiulcer Constituent from the Essential Oil of Baccharis dracunculifolia DC (Asteraceae) Fernando Canani Klopella, Marivane Lemosa, João Paulo Barreto Sousab, Eros Comunelloc, Edson Luis Maistrod, Jairo Kennup Bastosb, and Sérgio Faloni de Andradea,e,* a Núcleo de Ciência e Tecnologia, Área de Ciências Biológicas e da Saúde, Universidade do Oeste de Santa Catarina, Campus de Videira, Rua Paese, 198, Bairro Universitário, Videira, SC, CEP 89560-900, Brazil. Fax: +4935511444. E-mail: sfaloni@bol.com.br b Faculdade de Ciências Farmacêuticas

,9 S )-tetradec-5-en-9-olide, specific to queens of Silvestritermes minutus (Termitidae: Syntermitinae) [ 20 ]. Here, we report on the identification of the sesquiterpene alcohol (3 R ,6 E )-nerolidol as a queen-specific compound secreted by mature queens of four species from the subfamily, Embiratermes neotenicus , Silvestritermes heyeri , Labiotermes labralis , and Cyrilliotermes angulariceps . 2 Materials and methods 2.1 Origin of the insects Entire colonies of E. neotenicus (Holmgren), S. heyeri (Snyder), L. labralis (Holmgren), and C. angulariceps

possible decay by the long burial (3400 – 3210 cal BP) left the identifi cation inconclusive. Chemical analysis showed that the major volatile compo- nents of the bogwood were cadinane-type sesquiterpenes. In contrast, those of modern pine samples were longifolene and monoterpenes from Pinus densifl ora and Pinus thunbergii , nerolidol from Pinus parvifl ora and P . parvifl ora var. penta- phylla , and monoterpenes from Pinus koraiensis . Thus, none of the modern pines contained cadinane-type sesquiterpenes as major components. As organic components of

Abstract

Differences in essential oil composition of wild Achillea millefolium L., collected at five habitats in Lithuania, where plants with pink (f. rosea) and white (f. millefolium) flowers grow together, were reported. For the first time, oils of different plant organs (inflorescences and leaves) of both forms from every population were analysed in detail. Chemical analysis was performed by GC and GC-MS. The most predominant constituents of the oils were nerolidol (9.4–31.9%, in 11 out of 20 samples), caryophyllene oxide (8.4–23.0%, 4 leaf oils), ß-pinene (8.0–15.2%, 2 samples), eudesmol (11.8–15.8%, 2 leaf oils) and 1,8-cineole (11.9%, one inflorescence oil). Domination of nerolidol was mostly characteristic of A. millefolium f. rosea essential oils (in 8 out of 10 oils). The inflorescences biosynthesised markedly larger amounts of nerolidol and ß-pinene than those of the leaves. An opposite correlation was observed for caryophyllene oxide and eudesmol. Chamazulene (≤2.7%) was determined only in six oils. The 65 identified constituents made up 75.4–96.5% of the oils.

(uvenilhormonen in Wildseidenspinnern von P e t e r S c h m i a l e k Aus dem Physiol.-chemischen Institut der Freien Universität Berlin (Direktor: Professor Dr. Dr. E. S c h ü t t e ) (Z. Naturforschg. 18 b, 462—465 [1963]; eingegangen am 6. März 1963) Die Juvenilhormon-Aktivität aus Seidenspinnern besitzt das gleiche chromatographische Ver­ halten wie Farnesol und Farnesal. 2-14C-Mevalonat wird von den Seidenspinnern in Substanzen eingebaut, die als Farnesol, Farnesal und Nerolidol identifiziert werden konnten. Farnesol und Farnesal zeigen Corpuls

flocculent sex attracting secretion produced by the male dung beetle, Kheper lamarcki M acLeay, was found to consist of tubular polypeptide fibres containing hexadecanoic acid, 2,6-dimethyl-5-heptenoic acid and (£)-nerolidol as major components, while a trace of skatole is responsible for the unpleasant odour of the secretion. The coprophagous fauna associated with the mammals of Africa plays an important role in the recycling of nutrients and in the destruction of the habitat of many dung breeding flies [1], The failure of this process has been recorded in

, Bundesrepublik Deutschland Z. Naturforsch. 45c, 895-901 (1990); received February 2/M ay 14, 1990 Spodoptera littoralis, Lepidoptera, Oviposition Deterrence, Larval Frass, Egyptian Cotton Leaf Worm A synthetic mixture containing 1-indanone, 2-pentanone, 2-methyl-3-pentanone, 3-methyl- 2 -pentanone, 2 -methylcyclopentanone, 1 -hydroxy-propanone, acetophenone, benzaldehyde, «-nonanal, «-decanal, nerolidol, eugenol, thymol, carvacrol and phythol deters oviposition o f the Egyptian cotton leaf worm, Spodoptera littoralis from larval frass o f S. littoralis. Einleitung Die

genus. Oils of the three Pseudopanax species all contained significant propor- tions of viridiflorol and a closely related unidentified hydroazulene alcohol in common. In addition, the oil of P. arboreus contained bicyclogermacrene, linalool and long chain hy- drocarbons. The oil of P. discolor contained nerolidol in abundance (36.3%) together with linalool and epi-α-muurolol. The oil of P. lessonii contained a complex mixture of sesquiter- pene alcohols including epi-α-muurolol and a mixture of long chain hydrocarbons. Nerolidol and linalool provided the oil of P

components of the flower and fruit oils from Pittosporum tobira (Thunb.) Ait. grown in Iran, obtained through hydrodistillation, were analyzed by GC/MS. Sixteen compounds (representing 90.7% of the oil) and seventeen constituents (representing 89.9% of the oil) were identified in the flower and fruit oils, respectively. While the flower oil contained α-pinene (38.6%), n-nonane (11.8%), (E)-nerolidol (9.0%) and (E)--ocimene (7.7%), the fruit oil contained α-pinene (30.2%), n-nonane (12.2%), germacrene-D (12.0%), α-cubebene (7.6%) and -cubebene (5.1%) as the main compounds