Trifluoroacetic acid → HCID 131734577, compound
Reaction equation
[F:1][C:2]([F:7])([F:6])[C:3]([OH:5])=[O:4].[Cl:8][CH2:9][CH:10]([OH:21])[C@H:11]([NH:13]C(=O)OC(C)(C)C)C>ClCCl>[F:1][C:2]([F:7])([F:6])[C:3]([O-:5])=[O:4].[Cl:8][CH2:9][C@H:10]([OH:21])[CH2:11][NH3+:13]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
Trifluoroacetic acid (0.70 mL, 9.0 mmol) was added to a mixture of tert-butyl ((2R)-4-chloro-3-hydroxybutan-2-yl)carbamate (200 mg, 0.89 mmol) in dichloromethane (1.4 mL) and the mixture was stirred for one hour. The mixture was concentrated to afford (R)-3-chloro-2-hydroxypropan-1-aminium 2,2,2-trifluoroacetate. 1H NMR (500 MHz, DMSO-d6) δ 7.80 (s, 3H), 3.84 (td, J=6.8, 3.2 Hz, 1H), 3.76-3.63 (m, 1H), 3.61 (dd, J=11.3, 6.0 Hz, 1H), 3.51 (dd, J=11.2, 7.1 Hz, 1H), 3.39-3.30 (m, 1H), 1.08 (d, J=6.8 Hz, 3H).
Workup
- concentrationThe mixture was concentrated
Sources & evidence
- ORD record
- ord-4d4c2d4d7d9644ed98ffed5a9209a668
- Source dataset
- uspto-grants-2016_01
- Patent number
- US09242984B2
Reaction notes
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