Acetic Acid → 3-[[[3-(1,1,2,2-Tetrafluoroethoxy)phenyl]methyl]amino]phenol
Reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]([OH:8])[CH:5]=[CH:6][CH:7]=1.[F:9][C:10]([F:23])([O:14][C:15]1[CH:16]=[C:17]([CH:20]=[CH:21][CH:22]=1)[CH:18]=O)[CH:11]([F:13])[F:12].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(O)(=O)C>ClCCCl.O>[F:9][C:10]([F:23])([O:14][C:15]1[CH:16]=[C:17]([CH2:18][NH:1][C:2]2[CH:3]=[C:4]([OH:8])[CH:5]=[CH:6][CH:7]=2)[CH:20]=[CH:21][CH:22]=1)[CH:11]([F:12])[F:13]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 2
Procedure
EX-371A) To a solution of 3-aminophenol (4.91 g, 45.0 mmol) and 3-(1,1,2,2-tetrafluoroethoxy)benzaldehyde (10.0 g, 45.0 mmol) dissolved in 100 mL of 1,2-dichloroethane was added sodium triacetoxyborohydride (14.28 g 67.5 mmol) and glacial acetic acid (2.7 mL, 47.3 mmol). The reaction mixture was stirred for 6 h, water was added, and the mixture was extracted with dichloromethane. The organics were washed with saturated aqueous sodium bicarbonate then dried over MgSO4. The dried organic layer was evaporated to give 11.00 g (78%) of the desired 3-[[[3-(1,1,2,2-tetrafluoroethoxy)phenyl]methyl]amino]phenol product as a dark orange oil. 1H NMR (CDCl3) δ 4.32 (s, 2H), 5.88 (tt, 1H), 6.08 (t, 1H), 6.17-6.22 (m, 2H), 7.00 (t, 1H), 7.11 (dd, 1H), 7.24-7.27 (m, 2H), 7.33 (t, 1H).
Workup
- extractionthe mixture was extracted with dichloromethane
- washThe organics were washed with saturated aqueous sodium bicarbonate
- dry with materialthen dried over MgSO4
- customThe dried organic layer was evaporated
Sources & evidence
- ORD record
- ord-272b4aa2b6c14a40b8618d772928e62d
- Source dataset
- uspto-grants-2004_01
- Patent number
- US06677353B2
Reaction notes
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