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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 867414Generated: October 31, 2026

Penicillamine → HCID 15725081, compound

https://huagongshe.com/reaction/867414

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPenicillamineHCID 5852—
Reactant6-Formyl-2,3-dimethoxybenzoic acidHCID 68210—
SolventWaterHCID 962—
ProductHCID 15725081HCID 15725081—

Reaction Conditions

Temperature60 °C

Reaction Steps

2.1 g (10 mmoles) of opianic acid are dissolved in 30 ml of hot water and the solution is cooled to about 60° C. After adding 1.5 g (10 mmoles) of D-penicillamine, an oily product separates from the opalescent solution which becomes crystalline after standing overnight. The title acid is obtained in a yield of 2.75 g (80.5%) and can be recrystallized from methanol by adding water, m.p.: 90°-91° C., [α]D20 =+326° (c=0.772, methanol).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04775675
Source datasetuspto-grants-1988_10
ORD IDord-4e438f821a744abfa6675244d60e48da
Source noteuspto-grants-1988_10