Formaldehyde → 2-Undecen-1-ol, (2Z)-

HRID 1759599Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1759599
[CH2:1]=[O:2].C([Al](CCCCCCCC)[CH:12]=[CH:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH3:21])CCCCCCC>CCCCCC>[CH2:1]([OH:2])/[CH:12]=[CH:13]\[CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH3:21]

Komponenten

4

Edukt 2

HCID 712FormaldehydeHCID 5735163462493-32-7

Produkt 1

HCID 126424252-Undecen-1-ol, (2Z)-Ausbeute 27,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8058HexaneLösungsmittel

Versuchsvorschrift

Similarly to the procedure described in Example 1, a 25% slurry of 144 grams (4.80 moles) of paraformaldehyde in n-hexane was treated with 1083 grams (4.59 moles) is di-n-octyl decenyl aluminum (prepared from tri-n-octyl aluminum and acetylene). Distillation of the hydrolysis product was performed under 2 mm Hg. The product fraction was removed at 85°-95° C. There was obtained 210 grams (1.25 moles) of cis-2-undecen-1-ol (27.2% of theoretical yield), having a purity of 91%. Identity of the compound was confirmed by ir and nmr spectral analyses.

Aufarbeitung

  1. distillationDistillation of the hydrolysis product
  2. customThe product fraction was removed at 85°-95° C

Quellen und Nachweise

ORD-Eintrag
ord-a5d6078c0e3b427696ba17cb41d0485a
Quelldatensatz
uspto-grants-1982_07
Patentnummer
US04341910

Notizen zur Reaktion

Wird geladen…