Urea → Dipropylene glycol monocarbamate

HRID 1706297

Reaktionsgleichung

Reaktionsgleichung von HRID 1706297
[OH:1]CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO.N[C:57]([NH2:59])=[O:58].[CH3:60][CH:61]([OH:68])[CH2:62][O:63][CH:64]([CH2:66][OH:67])[CH3:65]>[Ni]>[C:57](=[O:1])([OH:58])[NH2:59].[CH3:60][CH:61]([OH:68])[CH2:62][O:63][CH:64]([CH2:66][OH:67])[CH3:65]

Komponenten

5

Edukt 3

HCID 1176Urea2×HCID 328812-(2-Hydroxypropoxy)-1-propanolHCID 14497137HO-Peg18-OH

Produkt 1

HCID 131711785Dipropylene glycol monocarbamateAusbeute 76 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 935NickelKatalysator

Reaktionsbedingungen

Temperatur
155 °C

Versuchsvorschrift

810 parts of a polyethylene ether-diol of molecular weight 810 (H(OCH2CH2)18OH) and 60 parts of urea are heated in a stirred apparatus for 5 hours at 150° C., whilst passing a stream of nitrogen through the apparatus. After this time, the degree of conversion is 92%. Thereafter, 2,680 parts of dipropylene glycol, 1,200 parts of urea and 100 parts of the nickel-containing exchanger prepared as described in Example 1(a) are added. The reaction mixture is heated for 16 hours at 155° C., whilst passing a stream of nitrogen through the apparatus. After the mixture has cooled to about 100° C., the catalyst is filtered off. 4,350 parts of the co-carbamate mixture, consisting of 24% of a polyethylene ether-diol monocarbamate H(OCH2CH)18OCONH2 and 76% of dipropylene glycol monocarbamate, are obtained.

Aufarbeitung

  1. customprepared
  2. additionare added
  3. temperatureAfter the mixture has cooled to about 100° C.
  4. filtrationthe catalyst is filtered off

Quellen und Nachweise

ORD-Eintrag
ord-39a8d7ed0537482c91707f3d2552054e
Quelldatensatz
uspto-grants-1980_06
Patentnummer
US04207073

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