Benzene → 2-[1-Allyl-3-(5-methylsulfonyl-1,3,4-thiadiazol-2-yl)ureido]acetaldehyde
반응식
[CH3:1][S:2]([C:5]1[S:9][C:8]([N:10]=[C:11]=[O:12])=[N:7][N:6]=1)(=[O:4])=[O:3].C([CH:16]([NH2:19])[CH:17]=[O:18])C=C.[CH:20]1[CH:25]=CC=C[CH:21]=1>>[CH2:25]([N:19]([CH2:16][CH:17]=[O:18])[C:11]([NH:10][C:8]1[S:9][C:5]([S:2]([CH3:1])(=[O:4])=[O:3])=[N:6][N:7]=1)=[O:12])[CH:20]=[CH2:21]참가 물질
4
실험 절차
A mixture of 5-methylsulfonyl-1,3,4-thiadiazol-2-yl isocyanate dimer (0.05 mole), the dimethyl acetal of 2-allyl-aminoacetaldehyde (0.1 mole) and benzene (60 ml) are charged into a glass reaction vessel equipped with a mechanical stirrer and reflux condenser. The reaction mixture is heated at reflux for a period of about 15 minutes. After this time the mixture is stripped of benzene under reduced pressure to yield a solid product as the residue. The residue is then recrystallized to yield the desired product the dimethyl acetal of 2-[1-allyl-3-(5-methylsulfonyl-1,3,4-thiadiazol-2-yl)ureido]acetaldehyde.
후처리
- customequipped with a mechanical stirrer
- temperaturereflux condenser
- temperatureThe reaction mixture is heated
- temperatureat reflux for a period of about 15 minutes
- customto yield a solid product as the residue
- customThe residue is then recrystallized
출처 및 근거
- ORD 기록
- ord-550700e25f424bcea7950a90db612af8
- 출처 데이터셋
- uspto-grants-1977_08
- 특허 번호
- US04043795
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