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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1701576Generated: November 1, 2026

Pyridine → HCID 12876713, compound

https://huagongshe.com/reaction/1701576

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantBromobenzeneHCID 7961—
ReactantPotassium CarbonateHCID 11430—
Reactant1-[(4-Hydroxyphenyl)methyl]-3,4,5,6,7,8-hexahydroisoquinoline-2(1H)-carbaldehydeHCID 23460099—
CatalystCopperHCID 23978—
SolventDiethyl EtherHCID 3283—
ProductHCID 12876713HCID 1287671369%

Reaction Steps

A solution of 29.0 g (0.106 mol) of (±)-1-(p-hydroxybenzyl)-2-formyl-1,2,3,4,5,6,7,8-octahydroisoquinoline in 530 ml of freshly distilled pyridine was refluxed with stirring under nitrogen with 12.88 ml of bromobenzene, 51.5 g of copper (granular) and 22.55 g of potassium carbonate for 14 days. The reaction mixture after cooling was diluted with ether 1 l. and filtered. The filtrate was concentrated under reduced pressure and the residue was dissolved in ether (300 ml). The ether solution was washed with 4 N aqueous sodium hydroxide (200 ml) then with water and dried. Removal of the solvent under reduced pressure gave 25.8 g (69%) of crude (±)-1-(p-phenoxybenzyl)-2-formyl-1,2,3,4,5,6,7,8-octahydroisoquinoline. For analysis, a sample of this compound was distilled, bp 220°-230° (0.05 mm Hq).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04194044
Source datasetuspto-grants-1980_03
ORD IDord-4b0352ecab6041988dfb7660df8354a9
Source noteuspto-grants-1980_03