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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2073157Generated: October 31, 2026

Hydrochloric Acid → HCID 19857530, compound

https://huagongshe.com/reaction/2073157

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantBenzenesulfonyl chloride, 4-chloro-3-nitro-HCID 7323—
Reactant2-(Methylamino)ethanolHCID 8016—
SolventWaterHCID 962—
ProductHCID 19857530HCID 19857530—

Reaction Steps

A solution containing 500 g of 4-chloro-3-nitrobenzenesulfonyl chloride in 1,000 ml of acetonhitrile was dropwise added to a solution containing 161 g of N-methylethanolamine in 1,500 ml of water as the mixture was cooled with ice-cold water. After the conclusion of dropwise addition, the stirring was continued for 1 hour at 20° C., and then the reaction mixture was made weakly acidic with dilute hydrochloric acid, extracted with ethyl acetate, washed 4 to 5 times with dilute hydrochloric acid, and concentrated. Thus, the intended oily matter was obtained. Yield: 459 g. Yield rate: 86%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04916047
Source datasetuspto-grants-1990_04
ORD IDord-5420e6197e8f40a3aa3149ea0213ba99
Source noteuspto-grants-1990_04