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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2112232Generated: October 30, 2026

Acetonitrile → HCID 11532042, compound

https://huagongshe.com/reaction/2112232

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetonitrileHCID 6342—
Reactant4-NitroanilineHCID 7475—
ReactantBenzofuran, 2,3-dihydro-2,2,4,6,7-pentamethyl-3-(4-methylphenyl)-HCID 10850374—
ReactantSodium NitriteHCID 23668193—
SolventHydrochloric AcidHCID 313—
SolventWaterHCID 962—
ProductHCID 11532042HCID 11532042100%

Reaction Conditions

Temperature2.5 °C

Reaction Steps

4-Nitroaniline (10.4 g) was dissolved in 2N hydrochloric acid (150 mL) by heating, and then cooled to 0 to 5° C. To the solution was added a solution of sodium nitrite (5.2 g) in water (15 mL), and the mixture was stirred for 15 minutes. To the mixture were added 2,2,4,6,7-pentamethyl-3-(4-methylphenyl)-2,3-dihydro-1-benzofuran (14.0 g) and acetonitrile (150 mL). The reaction mixture was stirred at 65 to 70° C. for one hour under a nitrogen atmosphere, and then allowed to cool to room temperature. Precipitated crystals were collected by filtration, and washed with 1N hydrochloric acid and water. The crystals were dried under reduced pressure to obtain the title compound as a brown solid (21.0 g, yield 100%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07521545B2
Source datasetuspto-grants-2009_04
ORD IDord-c4f511eedaf54ed4809c3c9e2112c3e4
Source noteuspto-grants-2009_04