Reaktionsgleichung
Br[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH3:11].[O:12]1[CH2:17][CH2:16][CH2:15][CH2:14][CH:13]1[O:18][CH2:19][C:20]#[CH:21].[OH-].[Na+]>>[O:12]1[CH2:17][CH2:16][CH2:15][CH2:14][CH:13]1[O:18][CH2:19][C:20]#[C:21][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH3:11]Komponenten
Versuchsvorschrift
A process for preparing the sex pheromone of Lymantria dispar L. effectively which comprises the steps of reacting 1-bromodecane and propargyl alcohol tetrahydropyranylether in the presence of sodium hydroxide to give 1-tetrahydropyranyloxy-2-tridecyne, treating the tetrahydropyranyloxy-2-tridecyne with p-toluenesulfonic acid to give 2-tridecyn-1-ol, catalystic-hydrogenating the 2-tridecyn-1-ol in the presence of Lindlar catalyst to give (Z)-2-tridecen-1-ol, oxidizing the (Z)-2-tridecen-1-ol with peroxide to give (±)-cis-2,3-epoxy-1-tridecanol, reacting the (±)-cis-2,3-epoxy-1-tridecanol with acid anhydride in the presence of hydrolase in an organic solvent for a stereoselective acylation and recovering unreacted optically active (2R, 3S)-cis-2,3-epoxy-1-tridecanol after the acylation, reacting the optically active (2R, 3S)-cis-2,3-epoxy-1-tridecanol with toluenesulfonylchloride to give (2R, 3S)-cis-1-p-toluenesulfoxy-2,3-epoxytridecane, and reacting the (2R, 3S)-cis-1-p-toluenesulfoxy-2,3-epoxytridecane with di(4-methylpentyl) lithium copper reagent to yield (7R, 8S)-cis-2-methyl-7,8-epoxyoctadecane which is the sex pheromone of Lymantria dispar L.
Aufarbeitung
- customA process for preparing the sex pheromone of Lymantria dispar L
Quellen und Nachweise
- ORD-Eintrag
- ord-28de5d5cb93849cca80df611cdf4e74e
- Quelldatensatz
- uspto-grants-1997_10
- Patentnummer
- US05677155
Verknüpfte Notizen
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