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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1066820Generated: November 1, 2026

Methyl iodide → HCID 21195981, compound

https://huagongshe.com/reaction/1066820

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantHCID 20662455HCID 20662455—
ReactantPotassium tert-butoxideHCID 23665647—
SolventTetrahydrofuranHCID 8028—
ProductHCID 21195981HCID 21195981—

Reaction Conditions

Temperature-78 °C

Reaction Steps

A solution of 4-(2-fluoro-5-bromobenzyloxy)-but-2-ynyl alcohol (1.07 g, 3.92 mmol) in tetrahydrofuran (26 ml) was cooled to −40° C. and then treated with potassium t-butoxide (4.31 ml of a 1 M solution in tetrahydrofuran, 4.31 mmol). The resulting dark orange solution was stirred for thirty minutes, cooled to −78° C. and treated with methyl iodide (0.49 ml, 7.84 mmol). The reaction was warmed to 0° C. and stirred for 1.5 hours. The reaction mixture was then partitioned between methylene chloride and saturated sodium bicarbonate. The organic fraction was dried over sodium sulfate, and the solvents were removed in vacuo. The desired title intermediate was further purified by high performance liquid chromatography to yield 790 mg (70%) as a clear oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06245761B1
Source datasetuspto-grants-2001_06
ORD IDord-474ea3ca761b43fa8246b4cafd5bc7e2
Source noteuspto-grants-2001_06