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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2113722Generated: October 31, 2026

Iodoethane → 1,3-diethyl-1H-indazole-6-carboxylic acid methoxy-methyl-amide

https://huagongshe.com/reaction/2113722

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIodoethaneHCID 6340—
ReactantEthyl AcetateHCID 8857—
ReactantPotassium tert-butoxideHCID 23665647—
ReactantHCID 178438012HCID 178438012—
SolventTetrahydrofuranHCID 8028—
Product1,3-diethyl-1H-indazole-6-carboxylic acid methoxy-methyl-amideHCID 59810833111.2%

Reaction Steps

A mixture of potassium tert-butoxide (0.144 g, 1.28 mmol) and iodoethane (0.20 g, 1.28 mmol) in THF (1 mL) was added to a solution of 3-ethyl-1H-indazole-6-carboxylic acid methoxy-methyl-amide (0.20 g, 0.86 mmol) in THF (3 mL) and the resulting mixture stirred at room temperature for 16 hours. Ethyl acetate (30 mL) was then added and the product was extracted with 0.5 N HCl (10 mL). The aqueous layer was then re-extracted with ethyl acetate (30 mL). The organics were combined, dried, filtered and concentrated to afford 250 mg of 1,3-diethyl-1H-indazole-6-carboxylic acid methoxy-methyl-amide that was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07432266B2
Source datasetuspto-grants-2008_10
ORD IDord-5fbfcbd2e161455e8c12ef604d297d23
Source noteuspto-grants-2008_10