6-nitro-3H-benzo[1,2,3]oxathiazole 2,2-dioxide → 6-Amino-3H-benzo[1,2,3]oxathiazole 2,2-dioxide
反応式
[N+:1]([C:4]1[CH:14]=[CH:13][C:7]2[NH:8][S:9](=[O:12])(=[O:11])[O:10][C:6]=2[CH:5]=1)([O-])=O>CO.[Pd]>[NH2:1][C:4]1[CH:14]=[CH:13][C:7]2[NH:8][S:9](=[O:12])(=[O:11])[O:10][C:6]=2[CH:5]=1参加物
4
実験手順
A solution of 6-nitro-3H-benzo[1,2,3]oxathiazole 2,2-dioxide (example 5) (8.1 g, 37 mmol) in methanol (250 ml) is hydrogenated at atmospheric pressure in the presence of Pd-C. The catalyst is then filtered off, the clear solution is treated with methanolic HCl (1 N) and the solvent is distilled off under reduced pressure. The residue is dissolved in ethanol and the product crystallizes after addition of diethyl ether.
後処理
- filtrationThe catalyst is then filtered off
- additionthe clear solution is treated with methanolic HCl (1 N)
- distillationthe solvent is distilled off under reduced pressure
- dissolutionThe residue is dissolved in ethanol
- customthe product crystallizes
- additionafter addition of diethyl ether
出典と根拠
- ORDレコード
- ord-fcbf13ea7a5142ffb9dfbea974bd61e3
- 出典データセット
- uspto-grants-2003_05
- 特許番号
- US06566390B2
反応ノート
読み込み中…