16-Bromohexadecanoic acid → 16-Bromo-1-hexadecanol

HRID 130282

Reaktionsgleichung

Reaktionsgleichung von HRID 130282
B.C1COCC1.[Br:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][C:23](O)=[O:24]>C1COCC1>[Br:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][OH:24]

Komponenten

4

Edukt 2

HCID 62039716-Bromohexadecanoic acidHCID 2723981Borane;tetrahydrofuran

Produkt 1

HCID 275701316-Bromo-1-hexadecanolAusbeute 93,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

Under inert atmosphere 10 ml of BH3.THF complex (1.0 M THF solution) were added to 30 ml THF solution of 2.15 gr (6.41 mmole) of 16-bromohexadecanoic acid at −20° C. Reaction mixture was stirred at this temperature for 2 hrs and then additional 1 hr at RT. After that time the resulted mixture was poured, with stirring, into a vessel containing 200 ml of ice/saturated sodium bicarbonate aqueous solution. Organic compounds were extracted with 3×200 ml of ether. The ether fractions were combined and dried over sodium sulfate. After removal of ether material was dissolved in minimum amount of dichloromethane and purified by silica gel chromatography (100% dichloromethane as eluent). 1.92 gr (93% yield) of the desired product were obtained.

Aufarbeitung

  1. customReaction mixture
  2. customadditional 1 hr
  3. customat RT
  4. additionAfter that time the resulted mixture was poured
  5. stirringwith stirring, into a vessel
  6. extractionOrganic compounds were extracted with 3×200 ml of ether
  7. dry with materialdried over sodium sulfate
  8. customAfter removal of ether material
  9. dissolutionwas dissolved in minimum amount of dichloromethane
  10. custompurified by silica gel chromatography (100% dichloromethane as eluent)

Quellen und Nachweise

ORD-Eintrag
ord-f3641d4d78794ac2b933cb2ecb7c1f2f
Quelldatensatz
uspto-grants-2008_06
Patentnummer
US07381525B1

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