Reaction equation
Cl.[CH2:2]([NH:4][C@H:5]([C:7]([OH:9])=[O:8])[CH3:6])[CH3:3].[CH:10](=O)[C:11]1C=C[CH:14]=[CH:13][CH:12]=1.Cl[CH2:19][CH2:20]Cl>>[CH2:19]([O:8][C:7](=[O:9])[CH:5]([NH:4][CH2:2][C:3]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1)[CH3:6])[CH3:20]Participants
4
Procedure
Ethyl alanine hydrochloride (5.5 g, 36.8 mmol), benzaldehyde (7.9 mL, 77.8 mmol), TEA (10.8 mL, 77.8 mmol) and NaBH(Oac)3 (16.5 g, 77.8 mmol) are taken up in 1,2-DCE (200 mL) and stirred at rt for 4 h. The reaction is then partitioned between DCM and saturated aqueous NaHCO3. The organic layer is removed, dried over anhydrous Na2SO4, and concentrated in vacuo. The crude residue is used without further purification. MS (ESI) m/z 208.2 (M+1).
Workup
- customThe reaction is then partitioned between DCM and saturated aqueous NaHCO3
- customThe organic layer is removed
- dry with materialdried over anhydrous Na2SO4
- concentrationconcentrated in vacuo
- customThe crude residue is used without further purification
Sources & evidence
- ORD record
- ord-5585c5018fac42c5b08c1e48cef059a5
- Source dataset
- uspto-grants-2013_07
- Patent number
- US08486954B2
Linked notes
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