Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 437154Generated: October 30, 2026

Hydrochloric Acid → HCID 21430436, compound

https://huagongshe.com/reaction/437154

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1-MethylpiperazineHCID 53167—
Reactant4-Chloro-3-(morpholine-4-sulfonyl)-benzoic acidHCID 767900—
SolventWaterHCID 962—
ProductHCID 21430436HCID 21430436—

Reaction Steps

273 Grams of 4-chloro-3-morpholinosulfonylbenzoic acid (1.0 mole) were heated under reflux for 5 hours with 0.5 l of N-methylpiperazine. Subsequently the excess base was completely eliminated in vacuo, the residue was dissolved in 2 l of water, and the pH value of the solution was adjusted to 8 by means of 5N HCl. After standing for 3 days at room temperature, the crystalline precipitate was suction-filtered and was recrystallized from water.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04029787
Source datasetuspto-grants-1977_06
ORD IDord-2b29b13824ff4be3bd89f4cf767d1e98
Source noteuspto-grants-1977_06