+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Identification and assignment of the absolute configuration of biologically active methyl-branched ketones from limnephilid caddis flies

, : Identification and assignment of the absolute configuration of biologically active methyl-branched ketones from limnephilid caddis flies. European Journal of Organic Chemistry (16): 3175-3179

The glands at the 4th and 5th abdominal sternite of the caddis flies Potamophylax latipennis, P. cingulatus and Glyphotaelius pellucidus contain (S)-4-methyl-3-heptanone (4a), (4S,6S)-4,6-dimethyl-3-octanone (4b), and (4S,6S)-4,6-dimethyl-3-nonanone (4c). As shown by gas chromatography coupled with electrophysiological recordings, these ketones elicit a strong response in the insects' antennae.


DOI: 10.1002/1099-0690(200108)2001:16<3175::aid-ejoc3175>;2-4

Other references

Kjærgaard, T.; Kristensen, K.; Kauczor, J.; Jørgensen, P.; Coriani, S.; Thorvaldsen, A.J., 2011: Comparison of standard and damped response formulations of magnetic circular dichroism. We apply damped response theory to the phenomenon of magnetic circular dichroism (MCD), and we investigate how the numerical instability associated with the simulation of the MCD spectrum from individually calculated A and B terms for close lying...

Chen Xinmin; Sun Jiaqi, 2001: Seismic risk analysis based on the similarity principle. The mechanisms of seismic risk in different regions have some similarities. A new method of calculating this degree of similarity is established, based on which seismic risks, in a few regions, are evaluated.

Ring, C.; Liu, X.; Brener, J., 1994: Cardiac stimulus intensity and heartbeat detection: Effects of tilt-induced changes in stroke volume. The effects of variations in stroke volume on the intensity of cardiac stimuli was examined in a series of three experiments that employed classical psychophysical methods to assess heartbeat detection. Stroke volume was manipulated by passive bod...

Welch, P.Q.; Williams, S.B.; Foss, R.D.; Tomaszewski, M-Magdalena.; Gupta, A.; Ojha, J., 2011: Lymphoepithelioma-like carcinoma of head and neck skin: a systematic analysis of 11 cases and review of literature. Lymphoepithelioma-like carcinoma of the skin (LELCS) is a rare tumor of unknown etiology, low malignant potential, and microscopic resemblance to undifferentiated nasopharyngeal carcinoma. Clinically, it presents as a flesh-colored firm nodule or...

Parida; Acharya; Samantaray; Mishra, 1999: Studies on Anion Promoted Titania.1: Preparation, Characterization, and Catalytic Activity toward Alcohol and Cumene Conversion Reactions of Phosphated Titania. Phosphate impregnated titania samples with varying amount of phosphate have been prepared by solid-solid kneading as well as aqueous impregnation method. All the samples are characterized by XRD, TG-DTA, and N(2) adsorption-desorption isotherm. Su...

Johnson, S., 1954: Experiences in machine vending of milk. The results obtained with automatic milk vending machines in Connecticut and other parts of the U.S.A. are discussed.

Mustonen, M., 1970: New agreement on working hours in practice. Sairaanhoitaja. Sjukskoterskan 46(4): 181-181

Nakamura, R.; Saikawa, Y.; Wada, N.; Yoshida, M.; Kubota, T.; Kumai, K.; Kitajima, M., 2007: Retrospective analysis of prognosis for scirrhous-type gastric cancer: one institution's experience. Scirrhous gastric cancer is biologically aggressive, and the prognosis is poor even with curative surgery. We compared outcomes with different therapies in order to identify prognostic factors. Records for 83 patients, who were treated between 199...

Myers, R.L., 1981: A systematic approach to medical motion picture production. Journal of Biological Photography 49(4): 123-136

Dekervel, J.; van Pelt, J.; Verslype, C., 2013: Advanced unresectable hepatocellular carcinoma: new biologics as fresh ammunition or clues to disease understanding?. Hepatocellular carcinoma (HCC) is a prevalent malignancy associated with a guarded prognosis. At present, sorafenib is the only approved systemic therapy for patients with advanced disease. The effect of sorafenib on overall survival is modest and...