13 C- and 17 O-relaxation times measured in cyclic ethers, cyclic ketones, and lactones allowed the determination of the quadrupolar interaction at the O-site. Values obtained for six-membered rings can be used as standard values for ethers (χ = 13 MHz), ketones (χ = 10.5 MHz), and ...
Ruwet, A., Janne, D. and Renson, M. (1970), Formation de Chromones (O,S,Se) et D'Autres Dérivés par Action du Dicétène sur le Phénol, le Thiophénol et le Sélénophenol. Contribution â L'étude des Réactions de Pechmann et Simonis. Bull. Soc. Chim. Belges, 79: 81–88...
The results obtained during this study are compared to those obtained from the reduction of the corresponding ketones by LiAlH4. [Journal translation]Jean-Claude RicherClaude Lamarrecanadian journal of chemistry
Département Science, ZYMA S.A. (Directeur Dr. P. Grumbach).doi:10.1002/hlca.19730560516FAO, RomeItaly). Tratado Internacional sobre los Recursos Fitogeneticos para la Alimentacion y la AgriculturaAGPHelvetica Chimica ActaSechaud J (1956) Helv Chim Acta 39:1257...
doi:10.1073/pnas.78.10.5924dose d'applicationfungicidesplant diseasesarbre fruitiervegetable cropsfungicidascontrol quimicoapplication ratesfongicideseed dressingThe Danish Institute of Agricultural Sciences grant approval to chemicals and biological plant protection products for control of plant diseases, pests ...
C. Brianso, Cesium uranium germanium tungstate, Cs 12 [U(GeW 11 O 39 ) 2 ]·13–14 H 2 O , Acta Crystallogr., Sect B 36:2012 (1980)C. Tourné, G. Tourné, M. C. Brianso . Acta Crystallogr., Sect. B36 (1980) 2012.
A set of mediterranean brown algae belonging to Cystoseira family is analysed by a G. L. C. and I. R. method. Easy determination of diterpenic compounds is presented. Among all the samples analysed, the only one Cystoseira elegans contains eleganolone, epoxy eleganolone and elegandiol as ...