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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1850443Generated: October 25, 2026

4-Bromo-2-chlorotoluene → 1-(3-Chloro-4-methylphenyl)-4-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)piperazine

https://huagongshe.com/reaction/1850443

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Bromo-2-chlorotolueneHCID 2735554—
ReactantHCID 66759981HCID 66759981—
Product1-(3-Chloro-4-methylphenyl)-4-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)piperazineHCID 5948501558%

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-2-chloro-1-methylbenzene (308 mg, 1.50 mmol), the reaction was carried out in the same manner as Example 23 to obtain the title compound 213 mg (yield 58%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08957069B2
Source datasetuspto-grants-2015_02
ORD IDord-c5a563e6f3904bdea15fdd2f3b1293e8
Source noteuspto-grants-2015_02