85615-64-1Relevant academic research and scientific papers
STEREOSPECIFIC SYNTHESIS OF 1,5-DIEN-3-YNES AND 1,3,5-TRIENES. APPLICATION TO THE STEREOCHEMICAL IDENTIFICATION OF TRIENIC SEX PHEROMONES
Tellier, Frederique,Descoins, Charles,Sauvetre, Raymond
, p. 7767 - 7774 (2007/10/02)
A one-pot sterospecific synthesis of 1,5-dien-3-ynes (Z) or (E) is described, based upon a palladium-catalyzed cross-coupling reaction between butenynylzinc bromide, generated in situ from 1,1-difluoroethylene, and an adequate iodoalkene.These dienynes are converted into the corresponding trienic compounds by (Z) semi-hydrogenation.
Two new stereoselective syntheses of (3E,5Z)-1,3,5-undecatriene
Gaudin, Jean-Marc,Morel, Cedric
, p. 5749 - 5752 (2007/10/02)
Two new and short syntheses of (3E,5Z)-1,3,5-undecatriene 1 are presented. Both approaches are based on the coupling between a C7 and a C4 synthon and afford 1 in 92-96% stereoisomeric purity.
NOUVELLE SYNTHESE DES UNDECATRIENES-1,3,5 NATURELS
Giraudi, E.,Teisseire, P.
, p. 489 - 492 (2007/10/02)
The two natural 1,3,5-undecatrienes have been synthesized starting from pyridazine-1-oxide.The methode allows us to obtain a mixture, in which the 1,3E,5Z isomer predominates.
A NOVEL SYNTHESIS OF LINEAR POLYENES VIA CONJUGATE ADDITION OF CUPRATES TO α,β-γ,δ-DIUNSATURATED SULFONES FOLLOWED BY SO2 EXTRUSION
Naef, Ferdinand,Decorzant, Rene,Escher, Sina D.
, p. 5043 - 5046 (2007/10/02)
The two 1,3-butadienyl 2-propenyl sulfones 5 and 6, 1,3,5-heptatriene synthons, have been transformed into the tri- and tetraenes 1 - 4 by alkylcuprate addition and Ramberg-Baecklund SO2 extrusion.The reaction stereochemistry is discussed.
