Hydrogen Bromide → 1-Bromoundecane

HRID 231001

Reaktionsgleichung

Reaktionsgleichung von HRID 231001
[CH2:1](O)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH3:11].[BrH:13].S(=O)(=O)(O)O>O>[Br:13][CH2:1][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH3:11]

Komponenten

5

Edukt 3

HCID 260Hydrogen BromideHCID 1118Sulfuric AcidHCID 81841-Undecanol

Produkt 1

HCID 127441-BromoundecaneAusbeute 62,8 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

Undecanol (14 g), 48% aqueous hydrobromic acid (30 g) and concentrated sulphuric acid (5 ml) are heated together under reflux for 51/2 hours. After cooling, water is added and the organic layer is separated, washed with concentrated sulphuric acid (20 ml), brine (50 ml) and dilute aqueous sodium carbonate (50 ml), and is then dried over calcium chloride. Distillaion under vacuum gives 1-bromoundecane (12 g) as a yellow oil, b.p. 60°-70° C./0.1 mm.

Aufarbeitung

  1. temperatureunder reflux for 51/2 hours
  2. temperatureAfter cooling
  3. customthe organic layer is separated
  4. washwashed with concentrated sulphuric acid (20 ml), brine (50 ml) and dilute aqueous sodium carbonate (50 ml)
  5. dry with materialis then dried over calcium chloride

Quellen und Nachweise

ORD-Eintrag
ord-6e9957a4e4294e089334a80d84fed548
Quelldatensatz
uspto-grants-1989_07
Patentnummer
US04844892

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