Phosgene → HCID 54349766、化合物
反応式
[C:1](Cl)(Cl)=[O:2].[Cl:5][CH2:6][C:7]1[S:11][C:10]([NH2:12])=[N:9][N:8]=1>C(OCC)(=O)C>[Cl:5][CH2:6][C:7]1[S:11][C:10]([N:12]=[C:1]=[O:2])=[N:9][N:8]=1参加物
4
実験手順
A saturated solution of phosgene in ethyl acetate (100 ml) is charged into a glass reaction vessel equipped with a mechanical stirrer. A slurry of 5-chloromethyl-2-amino-1,3,4-thiadiazole (10 grams) in ethyl acetate (300 ml) is added to the reaction vessel, and the resulting mixture is stirred for a period of about 16 hours resulting in the formation of a precipitate. The reaction mixure is then purged with nitrogen gas to remove unreacted phosgene. The purged mixture is then filtered to recover the desired product 5-chloromethyl-1,3,4-thiadiazol-2-yl isocyanate dimer as a solid.
後処理
- customequipped with a mechanical stirrer
- customresulting in the formation of a precipitate
- customThe reaction mixure is then purged with nitrogen gas
- customto remove unreacted phosgene
- filtrationThe purged mixture is then filtered
- customto recover the desired product 5-chloromethyl-1,3,4-thiadiazol-2-yl isocyanate dimer as a solid
出典と根拠
- ORDレコード
- ord-0f48f4ca7f2844fd8fc681fd038060f3
- 出典データセット
- uspto-grants-1978_09
- 特許番号
- US04111949
反応ノート
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