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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 45950Generated: October 28, 2026

Potassium Carbonate → HCID 178420843, compound

https://huagongshe.com/reaction/45950

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant5-AminobenzimidazoleHCID 13623—
Reactant2-[4-(bromomethyl)phenyl]thiopheneHCID 2795253—
ProductHCID 178420843HCID 178420843—

Reaction Steps

The compound was synthesized starting from benzimidazol-5-amine (133 mg; 1 mmol; 1 eq.), 4-(thiophen-2-yl)benzylbromide (557 mg; 2.2 mmol; 2.2 eq.) and K2CO3 (304 mg; 2.2 mmol; 2.2 eq.) according to method 5; Yield: 0.09 g (18.9%); MS m/z: 478.4 [M+H]+; 1H-NMR (500 MHz, DMSO d6): δ 4.70 (s, 4H); 6.73 (br s, 1H); 6.78 (dd, 1H, 4J=2.1 Hz, 3J=8.9 Hz); 7.10-7.11 (m, 2H); 7.33-7.36 (m, 5H); 7.45 (dd, 2H); 7.49 (dd, 2H); 7.59-7.60 (m, 4H); 7.91 (s, 1H); 11.99 (br s, 1H); HPLC (METHOD [A]): rt 19.76 min (100%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08541596B2
Source datasetuspto-grants-2013_09
ORD IDord-88a5293223a64e94b01792fd21bdd521
Source noteuspto-grants-2013_09