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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2089729Generated: October 31, 2026

O-Toluidine → HCID 178468311, compound

https://huagongshe.com/reaction/2089729

Reaction equation

Participants

RoleNameHCIDCharge
ReactantO-ToluidineHCID 7242—
ReactantAcetylacetoneHCID 31261—
ReactantSodium AcetateHCID 517045—
ReactantSodium NitriteHCID 23668193—
SolventAcetic AcidHCID 176—
SolventHydrochloric AcidHCID 313—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 178468311HCID 17846831149.1%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a solution of 2-methylaniline (1000 mg, 9.34 mmol) in 10 mL of acetic acid and 2 mL of concentrated hydrochloride solution, sodium nitrite (774 mg, 11.21 mmol) in 4 mL of water was added dropwise at 0° C., and the mixture was stirred at 0° C. for 1 h. Then to the reaction mixture was added dropwise a solution of sodium acetate (2299 mg, 28.04 mmol) and acetylacetone (1215 mg, 12.15 mmol) in 10 mL of ethanol and 6 mL of water. The mixture was stirred at room temperature overnight, filtered, washed with water, EtOH/H2O (1:1) and hexane, and dried to give 3-[(2-methylphenyl)hydrazono]pentane-2,4-dione (1000 mg, 49%). LCMS: m/z=219 [M++H].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08435995B2
Source datasetuspto-grants-2013_05
ORD IDord-86e0d64362264207a2bd3ee0299fea1f
Source noteuspto-grants-2013_05