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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 437173Generated: October 30, 2026

Hydrochloric Acid → HCID 21430502, compound

https://huagongshe.com/reaction/437173

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1-MethylpiperazineHCID 53167—
Reactant4-Chloro-3-(pyrrolidine-1-sulfonyl)-benzoic acidHCID 1070198—
SolventWaterHCID 962—
ProductHCID 21430502HCID 21430502—

Reaction Steps

29.0 Grams of 4-chloro-3-pyrrolidinosulfonylbenzoic acid (0.1 mole) were heated with 50 ml of N-methylpiperazine for 4 hours under reflux. Subsequently the reaction solution was introduced into 0.3 l of water, and the pH value of the mixture was adjusted to 3.0 by means of 5N HCl. After having been allowed to stand over night at room temperature, the precipitate was suction-filtered, recrystallized from water and dried at 100° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04029787
Source datasetuspto-grants-1977_06
ORD IDord-7d047c9661d5430384a644258e7bc78d
Source noteuspto-grants-1977_06