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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2292349Generated: October 29, 2026

Hydrochloric Acid → HCID 131715838, compound

https://huagongshe.com/reaction/2292349

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantDiethyl EtherHCID 3283—
ReactantHCID 56974509HCID 56974509—
CatalystPalladiumHCID 23938—
ProductHCID 131715838HCID 131715838—

Reaction Steps

A solution of 3.60 g (10.0 mmol) of 3,4-dihydroxybenzoic acid, 2-[[2-[(phenylmethoxy)carbonyl]hydrazino]carbonyl]hydrazide in 90 ml of dry methanol containing 1.67 ml (20.0 mmol) of concentrated hydrochloric acid was hydrogenated in the presence of 0.36 g of 10% palladium on charcoal for 15 minutes. After the removal of the catalyst by filtration and of the solvent by evaporation in vacuo, the crude solid (2.61 g) was stirred with a few ml of dry ether; yield: 2.41 g.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04801705
Source datasetuspto-grants-1989_01
ORD IDord-cf243f62aca54232b81da82531484132
Source noteuspto-grants-1989_01