Formaldehyde → HCID 11217378, Verbindung

HRID 1421122Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1421122
[CH2:1]([C:3](=[CH:6][CH2:7][CH2:8][CH3:9])[CH:4]=O)[CH3:2].[CH2:10]=[O:11].CO.[OH-:14].[Na+]>COCCOCCOC>[CH2:8]([C:7]1[CH:10]([OH:14])[O:11][CH2:4][CH:3]([CH2:1][CH3:2])[CH:6]=1)[CH3:9]

Komponenten

6

Edukt 4

HCID 712FormaldehydeHCID 887MethanolHCID 125822-Ethylhex-2-EnalHCID 14798Sodium Hydroxide

Produkt 1

HCID 11217378HCID 11217378, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8150DiglymeLösungsmittel

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

To a mixture of 776 g of 2-ethyl-2-hexenal (purity: 97.6%, 6.0 mol), 324 g (4.0 mol) of 37% formalin, and 550 g of methanol heated to 50° C. was added dropwise with stirring 64 g (0.4 mol) of a 25% aqueous solution of sodium hydroxide over one hour. After the dropping was completed, the mixture was further stirred at 50° C. for 3 hours. The reaction mixture was analyzed by gas chromatography (the internal standard method with diethylene glycol dimethyl ether as an internal standard), and the yields of 3,5-diethyl-5,6-dihydro-2H-2-pyranol based on the used formaldehyde and the consumed 2-ethyl-2-hexenal were found to be 26% and 30%, respectively.

Aufarbeitung

  1. additionwas added dropwise

Quellen und Nachweise

ORD-Eintrag
ord-3cce890672ce4a4896189874dc29f151
Quelldatensatz
uspto-grants-2000_06
Patentnummer
US06072089

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