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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2063855Generated: November 1, 2026

4-Bromo-1-fluoro-2-methoxybenzene → 1-(4-Fluoro-3-methoxyphenyl)-4-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)piperazine

https://huagongshe.com/reaction/2063855

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Bromo-1-fluoro-2-methoxybenzeneHCID 13604909—
Reactant1-(2,2,4,6,7-Pentamethyl-2,3-dihydro-1-benzofuran-5-yl)piperazine hydrochloric acid saltHCID 66759981—
Product1-(4-Fluoro-3-methoxyphenyl)-4-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)piperazineHCID 5948500653.2%

Reaction Steps

By using 1-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)piperazine hydrochloric acid salt (311 mg, 1.00 mmol) synthesized in Reference example 147 and 4-bromo-1-fluoro-2-methoxybenzene (308 mg, 1.50 mmol), the reaction was carried out in the same manner as Example 23 to synthesize the title compound 212 mg (yield 53%). Melting point was 152 to 155° C. (hexane).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08288390B2
Source datasetuspto-grants-2012_10
ORD IDord-6952d35de2264df3b3d85e2804f34114
Source noteuspto-grants-2012_10