Ammonium Hydroxide → HCID 67980295, compound
Reaction equation
[CH2:1]([O:8][C:9]1[CH:17]=[C:16]2[C:12]([CH:13]=[C:14](CC(O)=O)[NH:15]2)=[CH:11][CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:22]([C:29]1[NH:30]C=CN=1)(C1NC=CN=1)=O.[OH-:34].[NH4+]>O1CCCC1>[CH2:1]([O:8][C:9]1[CH:17]=[C:16]2[C:12]([C:13]([CH2:22][C:29]([NH2:30])=[O:34])=[CH:14][NH:15]2)=[CH:11][CH:10]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of 6-benzyloxyindole-acetic acid (4.72 g, 16.7 mmol) in tetrahydrofuran (100 mL), was added carbonyl diimidazole (2.85 g, 17.6 mmol). The resulting solution was stirred at room temperature for 1.5 hr. Ammonium hydroxide (14 mL) was added and the reaction was allowed to stir at room temperature for 18 h. The mixture was concentrated to ½ volume and the resulting solid filtered and washed with cold methanol to give 2-[6-(benzyloxy)-1H-indol-3-yl]acetamide (4.7 g, quantitative) as a off-white solid. Mp: 189-192° C.; 1H NMR (DMSO-d6) 400 MHz δ: 10.65 (brs, 1H), 7.46 (d, J=7.4 Hz, 2H), 7.37-7.35 (m, 2H), 7.31 (m, 1H), 7.26 (brs, 1H), 7.14 (d, J=2.3 Hz, 1H), 7.12 (d, J=2.3 Hz, 1H), 6.79 (m, 2H), 5.04 (s, 2H), 3.39 (s, 2H); LCMS [M+H]: 281.
Workup
- stirringto stir at room temperature for 18 h
- concentrationThe mixture was concentrated
- filtrationthe resulting solid filtered
- washwashed with cold methanol
Sources & evidence
- ORD record
- ord-acce3c2436764c19847ddacda59ff964
- Source dataset
- uspto-grants-2013_06
- Patent number
- US08470786B2
Reaction notes
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