4-Pentyn-1-ol → 5-(2,5-Dichlorophenyl)pent-4-yn-1-ol

HRID 982735

Reaktionsgleichung

Reaktionsgleichung von HRID 982735
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([Cl:8])=[CH:4][C:3]=1I.[CH2:10]([OH:15])[CH2:11][CH2:12][C:13]#[CH:14]>C(NCC)C.ClCCl.[Cu]I>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([Cl:8])=[CH:4][C:3]=1[C:14]#[C:13][CH2:12][CH2:11][CH2:10][OH:15]

Komponenten

6

Versuchsvorschrift

A solution of 1,4-dichloro-2-iodobenzene (20.0 g, 73.3 mmol), 4-pentyn-1-ol (6.17 g, 73.3 mmol), bistriphenylphosphine(Pd II) chloride (1.03 g, 1.47 mmol), and copper(I) iodide (0.14 g, 0.733 mmol) in 400 ml of diethylamine was stirred under nitrogen for three days. This was diluted with dichloromethane and the oily layer was adsorbed onto silica gel and eluted with hexanes-ethyl acetate (5:1)to give 5-(2,5-dichlorophenyl)-pent-4-yn-1-ol, 13.7 g (82%).

Aufarbeitung

  1. washeluted with hexanes-ethyl acetate (5:1)to

Quellen und Nachweise

ORD-Eintrag
ord-9969cf388392435b81fa542945a2bcf1
Quelldatensatz
uspto-grants-2005_03
Patentnummer
US06861445B2

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