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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 475Generated: October 24, 2026

1,4-Dibromobenzene → Methyl 2-(4-(4-bromophenyl)piperazin-1-yl)acetate

https://huagongshe.com/en/reaction/475

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-DibromobenzeneHCID 7804—
Reactant1-Piperazineacetic acid, methyl esterHCID 15343158—
ReagentCesium carbonateHCID 10796—
CatalystBinap, (A+-)-HCID 634876—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
Solvent1,4-DioxaneHCID 31275—
ProductMethyl 2-(4-(4-bromophenyl)piperazin-1-yl)acetateHCID 580645200%

Reaction Conditions

Temperature85 °C

Reaction Steps

In a reaction vial, 1,4-dibromobenzene (0.373 g, 1.58 mmol), methyl 2-(piperazin-1-yl)acetate (0.100 g, 0.63 mmol), CS2CO3 (0.309 g, 0.95 mmol), and BINAP (0.024 g, 0.04 mmol) were taken up in 1,4-dioxane (1.5 ml). Argon was bubbled through the solution for 1 minute. Pd2(dba)3 (0.012 g, 0.01 mmol) was added, followed by additional purging with argon. The vial was capped and placed on the heater-shaker. The reaction was stirred (450 rpm) at 100 °C overnight. LC/MS at this point did not indicate any formation of the dp. Experiment not progressed.

Provenance & Evidence

Source dataset750 AstraZeneca ELN dataset
ORD IDord-cf737b8f3d9340aca6130b04f75e7c21
Source note750 AstraZeneca ELN dataset