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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2073660Generated: November 1, 2026

Hydrochloric Acid → HCID 18638689, compound

https://huagongshe.com/reaction/2073660

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPenicillamineHCID 5852—
ReactantPotassium CarbonateHCID 11430—
ReactantBenzonitrile, 4-bromo-HCID 12162—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 18638689HCID 18638689—

Reaction Steps

36.4 g (0.2 mole) 4-bromobenzonitrile, 29.8 g (0.2 mole) D-penicillamine and 13.8 g (0.1 mole) potassium carbonate were heated in 350 ml methanol and 150 ml water for 6 hours at the boiling point. After the mixture was acidified with concentrated hydrochloric acid to pH 4, it was heated one hour to a boil. After it cooled off, 53.6 g (81% of theory) of the product were isolated as a colorless precipitate with a melting point of 176° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04918223
Source datasetuspto-grants-1990_04
ORD IDord-7bd8ee60a66549c5b084e23e33688600
Source noteuspto-grants-1990_04