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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 126826Generated: October 31, 2026

HCID 10765851, compound → 5,5-Dimethyl-10-hydroxy-8-(3-methyl-2-octyl)-5H-[1]benzopyrano[3,4-d]pyridine

https://huagongshe.com/reaction/126826

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 10765851HCID 10765851—
CatalystPalladiumHCID 23938—
SolventO-XyleneHCID 7237—
Product5,5-Dimethyl-10-hydroxy-8-(3-methyl-2-octyl)-5H-[1]benzopyrano[3,4-d]pyridineHCID 19781402—

Reaction Steps

A mixture of 2.23 g. of 2-benzyl-5,5-dimethyl-10-hydroxy-8-(3-methyl-2-octyl)-1,2,3,4-tetrahydro-5H-[1]benzopyrano[3,4-d]pyridine, 0.8 g. (10%) palladium on carbon, and 100 ml. of xylene was stirred and refluxed for 24 hours. After removal of the catalyst, the filtrate was evaporated in vacuo and the residue was recrystallized from acetonitrile; m.p. 154°-156°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04254116
Source datasetuspto-grants-1981_03
ORD IDord-3e4f0fa5d98b4928ba20c87e903fd78f
Source noteuspto-grants-1981_03