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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1004762Generated: October 31, 2026

Iodide Ion → HCID 18793505, compound

https://huagongshe.com/reaction/1004762

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIodide IonHCID 30165—
ReactantHCID 18793489HCID 18793489—
ReactantLithium diisopropylamineHCID 45051747—
SolventTetrahydrofuranHCID 8028—
ProductHCID 18793505HCID 1879350553%

Reaction Conditions

Temperature-78 °C

Reaction Steps

N-(1-methylethyl)-2-propanamine lithium salt (0.0325 mol; 1 M in THF) was added dropwise and under N2 flow to intermediate 4 (0.0309 mol) in THF (70 ml), cooled to -78° C. The mixture was stirred for 30 minutes at -78° C. lodomethane iodide (0.034 mol) was added dropwise and the reaction mixture was stirred for 2 hours at RT. The mixture was quenched with a saturated aqueous NH4Cl solution, and extracted with ethylacetate. The separated organic layer was dried, filtered, and the solvent was evaporated. The residue was purified by short open column chromatography over silica gel (eluent: CH2Cl2), then by HPLC over silica gel (eluent: hexane/ethylacetate 3/2). The pure fractions were collected and the solvent, yielding 4.64 g (53%) of (±)-4-(difluoromethoxy)-alpha-methyl-3-[(tetrahydro-3-furanyl)oxy]benzeneacetonitrile (intermediate 9).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06051718
Source datasetuspto-grants-2000_04
ORD IDord-f822d8e48bd240d1893071f0ad7f9de1
Source noteuspto-grants-2000_04