Formaldehyde → HCID 9849390, compound
Reaction equation
[N:1]1[CH:6]=[CH:5][CH:4]=[CH:3][C:2]=1[CH2:7][NH:8][CH:9]1[CH2:17][C:16]2[C:11](=[CH:12][CH:13]=[C:14]([NH:18][C:19]([C:21]3[C:22]([C:28]4[CH:33]=[CH:32][C:31]([C:34]([F:37])([F:36])[F:35])=[CH:30][CH:29]=4)=[C:23]([CH3:27])[CH:24]=[CH:25][CH:26]=3)=[O:20])[CH:15]=2)[CH2:10]1.[CH2:38](N(CC)CC)C.C=O.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>C(Cl)Cl>[N:1]1[CH:6]=[CH:5][CH:4]=[CH:3][C:2]=1[CH2:7][N:8]([CH3:38])[CH:9]1[CH2:17][C:16]2[C:11](=[CH:12][CH:13]=[C:14]([NH:18][C:19]([C:21]3[C:22]([C:28]4[CH:29]=[CH:30][C:31]([C:34]([F:35])([F:36])[F:37])=[CH:32][CH:33]=4)=[C:23]([CH3:27])[CH:24]=[CH:25][CH:26]=3)=[O:20])[CH:15]=2)[CH2:10]1Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of 6-methyl-4′-trifluoromethylbiphenyl-2-carboxylic acid [2-(2-pyridylmethylamino)-indan-5-yl] amide (the compound of Example 20f, 0.4 g, 0.8 mmol) in methylene chloride (5 mL) is added triethylamine (0.12 g, 1.15 mmol) and paraformaldehyde (0.024 g, 0.8 mmol). The mixture is stirred for two hours and then sodium triacetoxyborohydride (0.24 g, 1.12 mmol) is added. The mixture is stirred overnight and then washed with dilute sodium bicarbonate, dried over sodium sulfate, and evaporated. The residue is purified by flash chromatography (SiO2; ethyl acetate) to afford 6-methyl-4′-trifluoromethylbiphenyl-2-carboxylic acid [2[(2-pyridylmethyl)(methyl)amino]-indan-5-yl] amide as a white solid, mp 105-115°.
Workup
- stirringThe mixture is stirred overnight
- washwashed with dilute sodium bicarbonate
- dry with materialdried over sodium sulfate
- customevaporated
- customThe residue is purified by flash chromatography (SiO2; ethyl acetate)
Sources & evidence
- ORD record
- ord-d22c7a51ce0c4493ad91c303a53ebe0f
- Source dataset
- uspto-grants-2001_03
- Patent number
- US06197798B1
Reaction notes
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