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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1415191Generated: October 31, 2026

Hydrochloric Acid → HCID 21483940, compound

https://huagongshe.com/reaction/1415191

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSulfur DioxideHCID 1119—
ReactantThionyl ChlorideHCID 24386—
ReactantHCID 21483913HCID 21483913—
SolventBenzeneHCID 241—
ProductHCID 21483940HCID 21483940—

Reaction Steps

3,4-Dichloro-5-methoxybenzoic acid (22.1 g., 0.1 mole) is heated with thionyl chloride (15 g., 0.125 mole) in benzene (100 ml.) until evolution of sulfur dioxide and hydrogen chloride ceases. The benzene and excess thionyl chloride are evaporated and the solid residue is used in the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04003927
Source datasetuspto-grants-1977_01
ORD IDord-bd83424922204c499f202f4736b8b0ad
Source noteuspto-grants-1977_01