Methylamine → N-{2-methoxy-5-(5-trifluromethyltetrazole-1-yl)benzyl}-N-methylamine
Reaction equation
[CH3:1][O:2][C:3]1[CH:10]=[CH:9][C:8]([N:11]2[C:15]([C:16]([F:19])([F:18])[F:17])=[N:14][N:13]=[N:12]2)=[CH:7][C:4]=1[CH:5]=O.[CH3:20][NH2:21]>ClCCl.C(O)C.C(O)(=O)C>[CH3:1][O:2][C:3]1[CH:10]=[CH:9][C:8]([N:11]2[C:15]([C:16]([F:19])([F:18])[F:17])=[N:14][N:13]=[N:12]2)=[CH:7][C:4]=1[CH2:5][NH:21][CH3:20]Participants
6
Reactant 2
Product 1
Reagents, catalysts & solvents 3
Procedure
In 40 ml of dichloromethane was dissolved 2.72 g of 2-methoxy-5-(5-trifluoromethyltetrazole-1-yl)benzaldehyde, and added thereto was 2.5 ml of 8 M methylamine in ethanol solution, 0.572 ml of acetic acid and 3.12 g of triacetoxy sodium borohydride, the mixture was stirred at room temperature for 6 hours. The reaction mixture was washed with saturated aqueous sodium hydrocarbonate solution, and the organic layers were dried and concentrate. The residue was purified by silica gel column chromatography (chloroform:methanol=49:1 to 4:1), to give 2.2 g of N-{2-methoxy-5-(5-trifluromethyltetrazole-1-yl)benzyl}-N-methylamine as shown in Table 136 below.
Workup
- additionadded
- washThe reaction mixture was washed with saturated aqueous sodium hydrocarbonate solution
- customthe organic layers were dried
- concentrationconcentrate
- customThe residue was purified by silica gel column chromatography (chloroform:methanol=49:1 to 4:1)
Sources & evidence
- ORD record
- ord-373822fbb2184dc4954c487e35f9615f
- Source dataset
- uspto-grants-2009_11
- Patent number
- US07619092B2
Reaction notes
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