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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2287250Generated: October 30, 2026

Pyridine → HCID 12876713, compound

https://huagongshe.com/reaction/2287250

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 1. and filtered. The filtrate was concentrated under reduced pressure and the residue was dissolved in ether (300 ml). The ether solution was washed with 4N 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 numberUS04270000
Source datasetuspto-grants-1981_05
ORD IDord-f7cb005669c24e3ca2d8db8fe05cdfaa
Source noteuspto-grants-1981_05