Hydrochloric Acid → HCID 54278003, compound
Reaction equation
[C:1]([NH2:5])(=[O:4])[CH:2]=[CH2:3].C=O.[CH3:8]OC1C=CC(O)=CC=1.[NH2:17][C:18]([NH2:20])=[O:19].Cl>C(N(CC)CC)C>[C:1]([NH:5][CH:8]=[N:17][C:18]([NH2:20])=[O:19])(=[O:4])[CH:2]=[CH2:3]Participants
Reactant 5
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 50 °C
Procedure
The starting material acrylamidemethyleneurea is prepared by introducing into an agitated reactor provided with a reflux condensor, the following charge: 20 parts of acrylamide, 22.8 parts of a 37% aqueous formaldehyde solution, 0.2 parts of triethylamine, and 0.01 parts of hydroquinone methyl ether. The reaction is maintained at 50° C. for one hour. In a second step, after the resultant reaction product from the first step is cooled to 10° C., there are added 67.6 parts of urea and 15 parts of concentrated hydrochloric acid. The pH of the resultant reaction milieu is then 1. The reaction milieu is agitated for 15 hours at ambient temperature, thereby forming a precipitate as the reaction proceeds. The resultant product is filtered and recrystallized in water, thereby obtaining 27.5 parts of acrylamidomethyleneurea.
Workup
- customThe starting material acrylamidemethyleneurea is prepared
- additionby introducing into an agitated reactor
- customprovided with a reflux condensor
- additionthe following charge
- customIn a second step, after the resultant reaction product from the first step
- temperatureis cooled to 10° C.
- customThe pH of the resultant reaction milieu
- customforming a precipitate
- customas the reaction proceeds
- filtrationThe resultant product is filtered
- customrecrystallized in water
Sources & evidence
- ORD record
- ord-26f147eaf63c455c8dd38582b393160b
- Source dataset
- uspto-grants-1991_03
- Patent number
- US04999455
Reaction notes
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