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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 907107Generated: October 31, 2026

Water → HCID 11514254, compound

https://huagongshe.com/reaction/907107

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDimethylformamideHCID 6228—
ReactantHCID 72295607HCID 72295607—
ReactantButyllithiumHCID 178418339—
SolventTetrahydrofuranHCID 8028—
ProductHCID 11514254HCID 1151425412.5%

Reaction Conditions

Temperature0 °C

Reaction Steps

1-(1-Ethyl-6-methoxy-1-H-indole-3-yl)ethanone oxime (100 mg, 0.43 mmol) was dissolved in THF (900 μL) at 0° C. n-BuLi (450 μL, 2.5 M in hexanes, 1.12 mol) was added dropwise, resulting in instant precipitation of solids. DMF (70 μL, 0.9 mol) in 260 μL of was then added dropwise. This was stirred at 0° C. for 1 h, then at room temperature for 1 h. The reaction mixture was pipetted into a mixture containing 1 mL of H2O, 1 mL of THF, and 100 μL of concentrated H2 SO4. This mixture was heated at 75° C. for 1 h and then was partitioned between H2O and EtOAc. The organic phase was dried and concentrated. Purification by column chromatography (CH2Cl2) yielded 1-ethyl-3-isoxazol-3-yl-6-methoxy-1-H-indole product as a white solid (13 mg, 12%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08013006B2
Source datasetuspto-grants-2011_09
ORD IDord-ea24eaca5e4444d6a71c19361ef7d305
Source noteuspto-grants-2011_09