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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1606436Generated: November 1, 2026

Dichloromethane → HCID 178521126, compound

https://huagongshe.com/reaction/1606436

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantThionyl ChlorideHCID 24386—
ReactantHCID 178524755HCID 178524755—
SolventTriethylamineHCID 8471—
ProductHCID 178521126HCID 178521126—

Reaction Steps

To 80 ml. of dichloromethane solution containing 9.8 g. of 4-hydroxynicotinic acid and 10 ml. of triethylamine was added dropwise 7 ml. of thionyl chloride with stirring under ice-cooling over a period of 20 minutes and the mixture was stirred for 2 hours at room temperature. The crystals thus formed were recovered by filtration, washed with a small amount of dichloromethane, and then dried to provide 4-hydroxynicotinoyl chloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03953428
Source datasetuspto-grants-1976_04
ORD IDord-971823382f4f475685c2ea4f34a685bf
Source noteuspto-grants-1976_04