Methyl 2-[(tert-butylamino)sulfonyl]-6-nitrobenzoate → HCID 22024119、化合物
反応式
[C:1]([NH:5][S:6]([C:9]1[CH:18]=[CH:17][CH:16]=[C:15]([N+:19]([O-])=O)[C:10]=1[C:11]([O:13][CH3:14])=[O:12])(=[O:8])=[O:7])([CH3:4])([CH3:3])[CH3:2]>[Pd]>[NH2:19][C:15]1[CH:16]=[CH:17][CH:18]=[C:9]([S:6]([NH:5][C:1]([CH3:4])([CH3:3])[CH3:2])(=[O:8])=[O:7])[C:10]=1[C:11]([O:13][CH3:14])=[O:12]参加物
3
実験手順
A solution of 8.00 g (25.3 mmol) of methyl 2-[(tert-butylamino)sulfonyl]-6-nitrobenzoate is admixed with 3.2 g of palladium on activated carbon (5%) and hydrogenated at room temperature and under atmospheric pressure for 6 h. The reaction mixture is then filtered, the filtrate is concentrated to dryness and the residue is purified by silica gel chromatography [TLC (SiO2)ethyl acetate/n-heptane 1:1; Rf=0.38] using ethyl acetate/n-heptane (1:1). Evaporation gives 6.23 g (86% of theory) of methyl 2-amino-6-[(tert-butylamino)sulfonyl]benzoate as a beige solid of melting point 132-133° C.
後処理
- filtration