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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2063854Generated: November 4, 2026

Benzene, 4-bromo-1,2-dimethoxy- → 1-(3,4-Dimethoxyphenyl)-4-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)piperazine

https://huagongshe.com/reaction/2063854

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzene, 4-bromo-1,2-dimethoxy-HCID 76114—
Reactant1-(2,2,4,6,7-Pentamethyl-2,3-dihydro-1-benzofuran-5-yl)piperazine hydrochloric acid saltHCID 66759981—
Product1-(3,4-Dimethoxyphenyl)-4-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)piperazineHCID 5948508632%

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-1,2-dimethoxybenzene (326 mg, 1.50 mmol), the reaction was carried out in the same manner as Example 23 to synthesize the title compound 131 mg (yield 32%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08288390B2
Source datasetuspto-grants-2012_10
ORD IDord-a3e81ffc73404db08d704c4f729c3368
Source noteuspto-grants-2012_10