Benzyloxyacetyl chloride → HCID 24772586, compound
Reaction equation
[CH3:1][O:2][C:3]([CH2:5][O:6][C:7](=[O:15])[C:8]1[CH:13]=[CH:12][C:11]([NH2:14])=[CH:10][CH:9]=1)=[O:4].C(=O)(O)[O-].[Na+].[CH2:21]([O:28][CH2:29][C:30](Cl)=[O:31])[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1>C(OCC)(=O)C>[CH3:1][O:2][C:3]([CH2:5][O:6][C:7](=[O:15])[C:8]1[CH:9]=[CH:10][C:11]([NH:14][C:30](=[O:31])[CH2:29][O:28][CH2:21][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)=[CH:12][CH:13]=1)=[O:4]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
To a mixture of 4-amino-benzoic acid methoxycarbonylmethyl ester 6 (10 grams, 47.84 mmol) and sodium bicarbonate (8 grams, 95.23 mmol) in ethyl acetate (50 mL) at 0° C. is added benzyloxy acetyl chloride (12 grams, 65.04 mmol) drop wise. The reaction mixture is stirred at room temperature for 10 hours. The solids are filtered off, and the ethyl acetate layer is washed with 5% sodium bicarbonate solution (2×25 mL), water (2×25 mL), dried over sodium sulfate, and distilled to give crude 7, which can be purified via crystallized with a suitable solvent.
Workup
- filtrationThe solids are filtered off
- washthe ethyl acetate layer is washed with 5% sodium bicarbonate solution (2×25 mL), water (2×25 mL)
- dry with materialdried over sodium sulfate
- distillationdistilled
- customto give crude 7, which
- customcan be purified
- customvia crystallized with a suitable solvent
Sources & evidence
- ORD record
- ord-b453ab7d53384658a574cbf329699ed2
- Source dataset
- uspto-grants-2011_08
- Patent number
- US08007526B2
Reaction notes
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