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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 982125Generated: October 30, 2026

Hydrochloric Acid → HCID 56991050, compound

https://huagongshe.com/reaction/982125

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl AcetateHCID 8857—
ReactantHCID 67931147HCID 67931147—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
ProductHCID 56991050HCID 56991050—

Reaction Steps

To a solution of 0.46 g. (1.3 mmol) of [1R,8S,9aR] 1-carbomethoxy-5-methoxy-3-hydroxy-8-phenyl-7,8,9,9a-tetrahydrophenalene, from Step 3, in 50 mL of methanol, 50 mL of ethyl acetate, and 0.1 mL of concentrated hydrochloric acid is added 0.2 g of 5% palladium supported on carbon and the mixture is shaken under 4 atmospheres of hydrogen until the hydrogen uptake ceases. The catalyst is filtered through Celite filter aid and concentrated to give the title compound, which is carried on without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04994486
Source datasetuspto-grants-1991_02
ORD IDord-3b541a82cdcb4fb194405430489af95a
Source noteuspto-grants-1991_02