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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1944686Generated: October 30, 2026

Hydrochloric Acid → HCID 178527757, compound

https://huagongshe.com/reaction/1944686

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium ethylxanthateHCID 2735045—
Reactant5-Bromo-2-fluoroanilineHCID 2769407—
SolventWaterHCID 962—
ProductHCID 178527757HCID 17852775795.2%

Reaction Conditions

Temperature140 °C

Reaction Steps

To a solution of 5-bromo-2-fluorobenzenamine (200 mg, 1.28 mmol) in N-methyl-2-pyrrolidine (1.5 mL) was added potassium o-ethyl carbonodithioate (410 mg, 2.56 mmol). The mixture was heated at 140° C. for 2 h. The reaction mixture was poured into a large amount of water, acidified with concentrated hydrochloric acid, and filtered to give 5-bromo-benzothiazole-2-thiol 300 mg (95%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08394842B2
Source datasetuspto-grants-2013_03
ORD IDord-eafcaf284cb44ca59592d8346d056bc4
Source noteuspto-grants-2013_03