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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1835981Generated: November 1, 2026

Water → HCID 10308348, compound

https://huagongshe.com/reaction/1835981

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CyanideHCID 9032—
Reactant18-Crown-6HCID 28557—
Reactant7-Bromomethyl-5-methoxy-2-(4-methoxy-phenyl)-benzofuranHCID 10286796—
SolventDimethylformamideHCID 6228—
ProductHCID 10308348HCID 1030834898%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of benzyl bromide 17 (0.640 g, 1.843 mmole) in 100 mL dimethylformamide was added pulverized potassium cyanide (0.186 g, 2.76 mmole) and 18-crown-6 ether (0.786 g, 2.965 mmole). After stirring at 80° C. for 2 hours, the reaction mixture was cooled and poured into water and extracted with ethyl acetate. The combined organic phases were washed with saturated sodium bicarbonate, water, brine, and dried with magnesium sulfate. The organic phases were concentrated and the residue was loaded on to silica gel and chromatographed with silica gel (hexanes:ethyl acetate, 9:1) to afford 0.529 g (98%) of acetonitrile 18 as a white solid: Mp=149-150° C.; 1H NMR (DMSO-d6) δ 7.87 (d, 2 H, J=8.8 Hz), 7.26 (s, 1 H), 7.12 (d, 1 H, J=2.4 Hz),), 7.10 (d, 2 H, J=8.7 Hz), 6.88 (d, 1 H, J=2.4 Hz), 4.42 (s, 2 H), 3.82 (s, 3 H), 3.81 (s, 3 H); MS 294 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06774248B2
Source datasetuspto-grants-2004_08
ORD IDord-491e8b496ea34a08a8534a894347f9c5
Source noteuspto-grants-2004_08