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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2426031Generated: October 25, 2026

Hydrochloric Acid → N-(1-(6-Chloro-2,3-dihydrobenzo[b][1,4]dioxin-8-yl)ethyl)-2-(methylsulfonyl)-5-(piperazin-1-yl)benzenamine hydrochloride

https://huagongshe.com/reaction/2426031

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantN-(1-(6-chloro-2,3-dihydrobenzo[b][1,4]dioxin-8-yl)ethyl)-2-(methylsulfonyl)-5-(piperazin-1-yl)benzenamineHCID 11633830—
SolventDiethyl EtherHCID 3283—
SolventDichloromethaneHCID 6344—
ProductN-(1-(6-Chloro-2,3-dihydrobenzo[b][1,4]dioxin-8-yl)ethyl)-2-(methylsulfonyl)-5-(piperazin-1-yl)benzenamine hydrochlorideHCID 67147366—

Reaction Steps

A solution of N-(1-(6-chloro-2,3-dihydrobenzo[b][1,4]dioxin-8-yl)ethyl)-2-(methylsulfonyl)-5-(piperazin-1-yl)benzenamine (50.0 mg, 0.11 mmol) in anhydrous dichloromethane (1 mL) was cooled to 0° C. and HCl (0.12 mL of a 1 M solution in diethyl ether, 0.12 mmol) was added. The mixture was allowed to stir for 30 min. The solvent was removed by rotary evaporation, more diethyl ether was added to precipitate the salt. After removal of solvent by rotary evaporation the desired product was collected (53 mg, 99%). 1H NMR (400 MHz, CD3OD): δ 7.55 (d, 1H), 6.87 (d, 1H), 6.76 (d, 1H), 6.40 (dd, 1H), 6.02 (d, 1H), 4.84 (m, 1H), 4.33 (m, 2H), 4.27 (m, 2H), 4.43 (m, 4H), 3.30 (m, 4H), 3.07 (s, 3H), 1.54 (d, 3H); MS (ESI) m/z: 452.3 (M++1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07968538B2
Source datasetuspto-grants-2011_06
ORD IDord-134e72fa371f47048de92fdd43823b9f
Source noteuspto-grants-2011_06