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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 82753Generated: October 31, 2026

Ethyl Acetate → HCID 178432894, compound

https://huagongshe.com/reaction/82753

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantCesium carbonateHCID 10796—
Reactant2-MethylimidazoleHCID 12749—
ReactantHCID 178516227HCID 178516227—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 178432894HCID 17843289414.3%

Reaction Steps

To a mixture of 4-(2-((1H-tetrazol-5-yl)methyl)-5-(4-bromophenyl)-1H-pyrrol-1-yl)phenol (1.0 g, 2.52 mmol) and 2-methyl-1H-imidazole (2.07 g, 25.2 mmol) in DMSO (10.0 mL) was added 8-HQ (54 mg, 0.38 mmol), Cu2O (0.29 g, 2.52 mmol), Cs2CO3 (0.986 g, 3.03 mmol) and PEG-2000 (0.29 g). The resultant mixture was heated at 150° C. for 3 h under microwave irradiation. The mixture was treated with EA (60 mL), the resultant precipitate was filtered and purified by Biotage-flash (Solid phase: C18; Mobile phase: A: CH3CN, B: H2O (0.05% CF3COOH); gradient: 12%→24% B in A; flow rate: 40 mL/min) to afford an off white solid (143 mg, yield 14%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846736B2
Source datasetuspto-grants-2014_09
ORD IDord-6eae420421ea4238b408b18da16cd2ca
Source noteuspto-grants-2014_09