Formaldehyde → 2-Ethyl-2-methyl-1,3-propanediol

HRID 839869Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 839869
C([C:3](C=C)=[O:4])C.[CH2:7]=O.[C:9]1([CH:16]=[CH:15][C:13]([OH:14])=[CH:12][CH:11]=1)[OH:10]>O1CCOCC1>[CH2:16]([C:15]([CH3:7])([CH2:13][OH:14])[CH2:3][OH:4])[CH3:9].[CH3:16][CH:9]([OH:10])[CH2:11][CH2:12][CH3:13]

Komponenten

6

Edukt 3

HCID 712FormaldehydeHCID 785HydroquinoneHCID 153941-Penten-3-one

Produkt 2

HCID 223862-PentanolAusbeute 34 %HCID 661692-Ethyl-2-methyl-1,3-propanediolAusbeute 55,9 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

126 g of α-ethylacrolein, 300 g of a 30% strength aqueous solution of formaldehyde, 1 g of hydroquinone and 350 g of 1,4-dioxane were combined at 25° C to give a solution. After about 2 hours, 120 g of this solution, which had a pH value of 2-3, were hydrogenated as in Example 1. Analysis of the hydrogenated product gave 55.9% of 2-ethyl-2-methylpropane-1,3-diol and 34% of methylbutanol, relative to the α-ethylacrolein employed.

Aufarbeitung

  1. customwere combined at 25° C
  2. customto give a solution

Quellen und Nachweise

ORD-Eintrag
ord-55c9a9bc01614a039410d9bbf79de9cd
Quelldatensatz
uspto-grants-1978_06
Patentnummer
US04097540

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