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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2353236Generated: October 25, 2026

Methyl 4-bromobutyrate → 4-[4-(4-Phenoxy-phenyl)-piperazin-1-yl]-butyric acid methyl ester

https://huagongshe.com/reaction/2353236

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl 4-bromobutyrateHCID 107604—
Reactant1-(4-Phenoxyphenyl)piperazine hydrochlorideHCID 44818804—
Product4-[4-(4-Phenoxy-phenyl)-piperazin-1-yl]-butyric acid methyl esterHCID 5741955833.2%

Reaction Steps

The title compound (106 mg, 32.6%) was prepared from the compound from step 2, Example 8 (165 mg, 0.9 mmol) and 4-bromo-butyric acid methyl ester (165 mg, 90 mmol) by the procedure described in step 3 of Example 4: MS (ESI) m/z 355 (M+H); 1H NMR (400 MHz, CDCl3) δ 1.84 (m, 2H), 2.36-2.44 (m, 4H), 2.60 (t, J=4.8 Hz, 4H), 3.14 (t, J=4.8 Hz, 4H), 3.68 (s, 3H), 6.89-7.04 (m, 7H), 7.26-7.29 (m, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07750012B2
Source datasetuspto-grants-2010_07
ORD IDord-33c7649e522a4c40b19aecafb3ab40d5
Source noteuspto-grants-2010_07