Stannous Chloride → 4,5-Bis(trifluoromethyl)benzene-1,2-diamine
반응식
[F:1][C:2]([F:18])([F:17])[C:3]1[C:9]([C:10]([F:13])([F:12])[F:11])=[CH:8][C:6]([NH2:7])=[C:5]([N+:14]([O-])=O)[CH:4]=1.Cl[Sn]Cl>C(O)C>[F:1][C:2]([F:17])([F:18])[C:3]1[C:9]([C:10]([F:13])([F:12])[F:11])=[CH:8][C:6]([NH2:7])=[C:5]([NH2:14])[CH:4]=1참가 물질
4
실험 절차
p A solution of 122 mg (0.445 mmol) of 4,5-bis(trifluoromethyl)-2-nitroaniline and 498 mg (2.62 mmol) of SnCl2 in 6 mL of ethanol was heated at 70° C. for 2 h. The solution was evaporated to remove the ethanol. The residue was treated with 2 N NaOH to pH=13. White precipitate was observed. The mixture was extracted by CHCl3 (3×10 mL). The extract was dried (MgSO4) and evaporated to leave 102 mg (94% ) of oil. 1H NMR (CDCl3), 3.70 (mb, 4), 7.069 (s, 2) and some impurity. 19F NMR (CDCl3), 56.659 (s).
후처리
- customThe solution was evaporated
- customto remove the ethanol
- additionThe residue was treated with 2 N NaOH to pH=13
- extractionThe mixture was extracted by CHCl3 (3×10 mL)
- dry with materialThe extract was dried (MgSO4)
- customevaporated
출처 및 근거
- ORD 기록
- ord-b0f87a1b3f1f410ca61a6fe6a8fdbc6c
- 출처 데이터셋
- uspto-grants-1997_04
- 특허 번호
- US05620979
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