Formaldehyde → Propargyl alcohol

HRID 1414838

Reaktionsgleichung

Reaktionsgleichung von HRID 1414838
[Si]([O-])([O-])([O-])[O-].[Mg+2].[Mg+2].C=O.C#C.[CH:12]([OH:17])([OH:16])[C:13]#[C:14][CH3:15]>>[CH2:12]([OH:16])[C:13]#[CH:14].[CH:12]([OH:17])([OH:16])[C:13]#[C:14][CH3:15]

Komponenten

6

Edukt 4

HCID 712FormaldehydeHCID 6326AcetyleneHCID 66225Magnesium orthosilicateHCID 18778928But-2-yne-1,1-diol

Produkt 2

HCID 7859Propargyl alcoholHCID 18778928But-2-yne-1,1-diol

Versuchsvorschrift

The initial unimpregnated chi-rho alumina (Kaiser KA-300) had a surface area of 350 m2 /gram. On roasting, it was converted to a mixture of eta and pseudogamma phase aluminas. As shown in Table I, this alumina support for the catalyst of this invention is far less soluble in the liquid reaction medium than are the kieselguhr or magnesium silicate supports. Furthermore, it was found that the aluminasupported catalyst converted formaldehyde and acetylene to butynediol at a rate similar to that obtained with the other two catalysts but give a ratio of propargyl alcohol to butynediol three times that obtained with the magnesium silicate supported catalyst or kieselguhr supported catalyst.

Aufarbeitung

  1. additionOn roasting, it was converted to a mixture of eta and pseudogamma phase aluminas
  2. customin the liquid reaction medium
  3. customthat obtained with the other two catalysts

Quellen und Nachweise

ORD-Eintrag
ord-e42e7931ae9a4e048ef53776d89e1f75
Quelldatensatz
uspto-grants-1977_01
Patentnummer
US04002694

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