138524-36-4Relevant academic research and scientific papers
Pheromone synthesis. Part 256: Synthesis of the four stereoisomers of 5,11-dimethylpentacosane, a new sex pheromone component of the male Galleria mellonella (L.), with high stereochemical purities as determined by the derivatization-HPLC analysis of the eight stereoisomers of 5,11-dimethyl-8-pentacosanol
Mori, Kenji,Akasaka, Kazuaki
, p. 4102 - 4115 (2015/06/02)
Abstract All the four stereoisomers of 5,11-dimethylpentacosane (>96.8% purity) were synthesized via the stereoisomers of 5,11-dimethyl-8-pentacosanol, whose stereoisomeric compositions could be determined precisely by their low temperature HPLC analysis after derivatization. 5,11-Dimethyl-8-pentacosanol was prepared by a Grignard reaction between 3-methylheptylmagnesium bromide and 4-methyloctadecanal, both of which were prepared from the commercially available enantiomers of citronellal (97-98% ee). Alternatively, (R)-3-methyl-1-heptanol could be prepared from methyl (R)-3-hydroxybutanoate (100% ee). Pd/C-catalyzed hydrogenation of a 5-methyl-1-alkene caused partial racemaization at C-5.
STEREOSELECTIVE SYNTHESIS OF A DOLICHOL-LIKE OCTAPRENOL (S)-WT3C3SOH
Grigor'eva, N. Ya.,Pinsker, O. A.,Daeva, E. D.,Moiseenkov, A. M.
, p. 2037 - 2044 (2007/10/02)
In accordance with the previously developed block method of constructing polyprenol molecules, a new stereospecific synthesis was carried out of their natural representative WT3C2OH, which was then converted in nine steps into the above chiral octaprenol.
