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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1749740Generated: November 2, 2026

Ethyl Acetate → HCID 22139326, compound

https://huagongshe.com/reaction/1749740

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantPhosphorus oxychlorideHCID 24813—
ReactantN-(1H-Indol-5-ylmethyl)acetamideHCID 22139217—
SolventDimethylformamideHCID 6228—
ProductHCID 22139326HCID 2213932617%

Reaction Steps

The synthesis was performed with reference to the known literature (International Patent Publication WO2000/75139). N,N-Dimethylformamide (2.0 mL) cooled to 0° C. was added dropwise with phosphorus oxychloride (0.54 g, 3.5 mmol), and then the mixture was stirred for 15 minutes. Then, the mixture was added with a solution of N-[(1H-indol-5-yl)methyl]acetamide (0.60 g, 3.2 mmol) in N,N-dimethylformamide (4.0 mL), and then the mixture was stirred overnight at room temperature. The reaction mixture was added with ethyl acetate, and then the organic layer was washed successively with water and saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and then the residue was subjected to silica gel column chromatography (eluted with chloroform/methanol (90:10)) to obtain a solid containing the objective substance. This solid was washed with ethyl acetate to obtain N-[(3-formyl-1H-indol-5-yl)methyl]acetamide (0.12 g, 17%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09156827B2
Source datasetuspto-grants-2015_10
ORD IDord-9ff6a28c662242699f2cc6b9b4ffdbc3
Source noteuspto-grants-2015_10