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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 26295Generated: October 30, 2026

Diethyl Ether → HCID 20570498, compound

https://huagongshe.com/reaction/26295

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
ReactantChloroacetonitrileHCID 7856—
ReactantSodium hydrideHCID 24758—
ReactantHCID 20570489HCID 20570489—
SolventDimethylformamideHCID 6228—
ProductHCID 20570498HCID 20570498—

Reaction Conditions

Temperature60 °C

Reaction Steps

Sodium hydride (0.93 g, 80% dispersion in oil) was added to a solution of 2,2-dimethyl-4-(3-trifluoromethylphenyl)chroman-7-ol (containing 1 mole of carbon tetrachloride of crystallisation) (7.5 g) in dimethylformamide (25 ml). Chloroacetonitrile (1.76 g) was added and the mixture heated at 60° C. for 3 hours. The solvent was removed under reduced pressure and the resulting oil was poured into water. The aqueous solution was extracted with ether and the etheeal extracts were dried (MgSO4) and evaporated under reduced pressure to yield an oil. Chromatography on alumina with ether--petrol (40°-60° C.); 1:3 as eluate gave the title compound which crystallised on standing.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04148909
Source datasetuspto-grants-1979_04
ORD IDord-99b41978505c4240bd53d8da44b02989
Source noteuspto-grants-1979_04