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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1972369Generated: November 1, 2026

Dichloromethane → HCID 66582650, compound

https://huagongshe.com/reaction/1972369

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantBenzenesulfonyl chlorideHCID 7369—
ReactantTriethylamineHCID 8471—
Reactant1-(4-Bromophenyl)piperazineHCID 2735629—
SolventWaterHCID 962—
ProductHCID 66582650HCID 6658265094.8%

Reaction Steps

A 500 mL round-bottomed flask was charged with 1-(4-bromophenyl)piperazine (10.00 g, 41.5 mmol, Combi-Blocks, San Diego, Calif.) and 100 mL of CH2Cl2. To this was slowly added triethylamine (6.94 mL, 49.8 mmol) and benzenesulfonyl chloride (6.15 mL, 47.7 mmol). After 15 min at room temperature, the mixture was diluted with water (100 mL) and layers were separated. The organics were dried (MgSO4) and concentrated. The resulting solid was slurried with diethyl ether (200 mL) to give 1-(4-bromophenyl)-4-(phenylsulfonyl)piperazine (15.00 g) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08431563B2
Source datasetuspto-grants-2013_04
ORD IDord-bc7622e34a3649ce9e84a878a55aa00b
Source noteuspto-grants-2013_04