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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 364139Generated: November 2, 2026

2,3,4a,5-Tetrahydro-9-methoxy-4-propyl-4H-[1]-benzopyrano[3,4-b]pyridin-2-one → 9-methoxy-4-propyl-1,2,3,4a,5,10b-hexahydro-4H-[1]-benzopyrano[3,4-b]pyridine

https://huagongshe.com/reaction/364139

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,3,4a,5-Tetrahydro-9-methoxy-4-propyl-4H-[1]-benzopyrano[3,4-b]pyridin-2-oneHCID 20153986—
ReactantAluminium lithium hydrideHCID 21226445—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
SolventDiethyl EtherHCID 3283—
Product9-methoxy-4-propyl-1,2,3,4a,5,10b-hexahydro-4H-[1]-benzopyrano[3,4-b]pyridineHCID 14151578—

Reaction Steps

9-Methoxy-4-propyl-2,3,4a,5-tetrahydro-4H-[1]-benzopyrano[3,4-b]pyridin-2-one is heated with lithium aluminium hydride in ether. The resulting product is hydrogenated in ethanol in the presence of 10% palladium on carbon catalyst to give 9-methoxy-4-propyl-1,2,3,4a,5,10b-hexahydro-4H-[1]-benzopyrano[3,4-b]pyridine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04604397
Source datasetuspto-grants-1986_08
ORD IDord-c87b1a2264634b9193c40b1b69b83c1c
Source noteuspto-grants-1986_08