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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1522502Generated: October 25, 2026

Benzene → HCID 67124416, compound

https://huagongshe.com/reaction/1522502

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzeneHCID 241—
ReactantEthyl 4-(4-methoxyphenyl)-2,4-dioxobutanoateHCID 287267—
Reactant1-tert-Butyl-3-methyl-1H-pyrazol-5-amineHCID 737200—
SolventAcetic AcidHCID 176—
ProductHCID 67124416HCID 67124416—

Reaction Steps

The title compound was prepared in the same manner as described for intermediate 61 using ethyl 4-[4-(methyloxy)phenyl]-2,4-dioxobutanoate (327 mg, 1.305 mmol), benzene (8 mL), 1-(1,1-dimethylethyl)-3-methyl-1H-pyrazol-5-amine (200 mg, 1.305 mmol), and acetic acid (2 mL). The crude product was purified using column chromatography (Silica gel, eluent: 0 to 100% EtOAc/hexanes) to give 0.41 g (85%) of product. LCMS E-S (M+H)=368.1. 1H NMR (400 MHz, DMSO-d6) δ ppm 1.81 (s, 9 H), 2.55 (s, 3 H), 7.11 (d, J=8.84 Hz, 2 H), 7.89 (s, 1 H), 8.16 (d, J=8.84 Hz, 2 H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09073924B2
Source datasetuspto-grants-2015_07
ORD IDord-3b502d20205a47e39b96305c0309809a
Source noteuspto-grants-2015_07