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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2063870Generated: November 1, 2026

1-(4-Fluorophenyl)piperazine → 1-(7-Ethoxy-2,4,6-trimethyl-2,3-dihydro-1-benzofuran-5-yl)-4-(4-fluorophenyl)piperazine

https://huagongshe.com/reaction/2063870

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(4-Fluorophenyl)piperazineHCID 75260—
Reactant5-Bromo-7-ethoxy-2,4,6-trimethyl-2,3-dihydro-1-benzofuranHCID 66759168—
Product1-(7-Ethoxy-2,4,6-trimethyl-2,3-dihydro-1-benzofuran-5-yl)-4-(4-fluorophenyl)piperazineHCID 5948513061%

Reaction Steps

By using 5-bromo-7-ethoxy-2,4,6-trimethyl-2,3-dihydro-1-benzofuran (570 mg, 2.0 mmol) synthesized in Reference example 84 and 1-(4-fluorophenyl)piperazine (720 mg, 4.0 mmol), the reaction was carried out in the same manner as Example 21 to synthesize the title compound 467 mg (yield 61%). Melting point was 136 to 138° C. (ethanol-water).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08288390B2
Source datasetuspto-grants-2012_10
ORD IDord-5a2427c154e1430fae69991637229be7
Source noteuspto-grants-2012_10