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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 83606Generated: October 25, 2026

1,2-Dichloroethane → (4-benzylpiperazin-1-yl)(1-(4-fluorobenzyl)-1H-indol-2-yl)methanone

https://huagongshe.com/reaction/83606

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant1-BenzylpiperazineHCID 75994—
ReactantDiisopropylethylamineHCID 81531—
Reactant1-(4-fluorobenzyl)-1H-indole-2-carboxylic acidHCID 18627069—
SolventDimethylformamideHCID 6228—
SolventDiethylether ethylacetateHCID 21584169—
Product(4-benzylpiperazin-1-yl)(1-(4-fluorobenzyl)-1H-indol-2-yl)methanoneHCID 6657109671.7%

Reaction Steps

The following was added sequentially to anhydrous DMF: 1-(4-fluorobenzyl)-1H-indole-2-carboxylic acid (50 mg, 0.186 mmol), Hunig's Base (0.065 ml, 0.371 mmol), EDC (46.3 mg, 0.241 mmol), HOBT (37.0 mg, 0.241 mmol), and 1-benzylpiperazine (32.7 mg, 0.186 mmol). The solution was allowed to stir at room temperature for 22 h. At this time, a 1:1 solution of diethylether/ethyl acetate (5 mL) was added, and this was washed with aqueous 10% Na2CO3 (3×2 mL). The extract was then dried with anhydrous MgSO4, filtered, and the filtrate was concentrated in vacuo. The crude residue was purified by column chromatography (20 g silica, 80% EtOAC/Hexanes) to provide 57 mg of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846684B2
Source datasetuspto-grants-2014_09
ORD IDord-f9409ce4bfe340538e78425c0eebca35
Source noteuspto-grants-2014_09