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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 643288Generated: October 25, 2026

Water → 1,2-Diphenylethane-1,2-dione (2-methylphenyl)-hydrazone

https://huagongshe.com/reaction/643288

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantBenzilHCID 8651—
Reactanto-Tolylhydrazinium(1+) chlorideHCID 71554—
SolventAcetic AcidHCID 176—
Product1,2-Diphenylethane-1,2-dione (2-methylphenyl)-hydrazoneHCID 86608950101.8%

Reaction Steps

A mixture of 2-methylphenyl hydrazine hydrochloride (0.79 g, 5.0 mmol) and 1,2-diphenyl-ethane-1,2-dione (1.05 g, 5 mmol) in 20 mL of glacial acetic acid was refluxed for 30 min. The reaction was poured into water and extracted with ethyl acetate. The combined organics was dried over MgSO4 and concentrated to give 1.6 gram of 1,2-diphenylethane-1,2-dione (2-methylphenyl)-hydrazone as an orange solid. MS (ESI) m/z 315 ([M+H]+);

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07700595B2
Source datasetuspto-grants-2010_04
ORD IDord-6a58b27c657646648bfad80242fd5e7e
Source noteuspto-grants-2010_04