1-(1-Isocyanato-1-methylethyl)-3-(1-methylethenyl)benzene → Urea alpha-methyl styrene
Reaktionsgleichung
CC(N)COCC(OCC(OCC([NH2:16])C)C)C.[C:18]([C:21]1[CH:22]=[C:23]([CH:30]=[CH:31][CH:32]=1)C([N:27]=[C:28]=[O:29])(C)C)([CH3:20])=[CH2:19]>CC(CCC)=O>[NH2:27][C:28]([NH2:16])=[O:29].[CH3:20][C:18]([C:21]1[CH:22]=[CH:23][CH:30]=[CH:31][CH:32]=1)=[CH2:19]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
59.95 g (0.010 m) of α,ω-Di-(1-methyl-aminoethyl)-poly-(ethylene oxide) of MW 5995 (Jeffamine-ED 6000) and 59.95 g of anhydrous methyl propyl ketone are charged into a 3-necked round bottomed flask which has been equipped with a stirrer, nitrogen inlet, condenser, thermometer and dropping funnel. The solution is stirred at room temperature under dry nitrogen, then 4.02 g (0.020 mole) of m-isopropenyl-alpha,alpha-dimethylbenzyl isocyanate (MW 201) dissolved in 3.1 g of anhydrous methylpropyl ketone are added slowly from the dropping funnel. The mildly exothermic reaction is maintained at 35° C. and below by water bath cooling for 1 hour, at which time an IR analysis shows the reaction to be complete.