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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 378969Generated: October 29, 2026

Bromocyclopentane → HCID 6484666, compound

https://huagongshe.com/reaction/378969

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromocyclopentaneHCID 8728—
Reactanto-VanillinHCID 8991—
ReactantPotassium CarbonateHCID 11430—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 6484666HCID 6484666615%

Reaction Steps

A mixture of 2-hydroxy-3-methoxy-benzaldehyde (10 g, 6.57 mmoles), K2CO3 (18.16 g, 131 mmoles), cyclopentyl-bromide (14.05 ml, 131 mmoles) in absolute ethanol (150 ml) under nitrogen was refluxed under stirring for 55 hours. The mixture was diluted with water, thrice extracted in ethyl acetate, washed with water, anhydrified over Na2SO4 and evaporated to dryness, the yielded oil was purified by flash chromatography on silica gel (eluent petrolatum/ethyl acetate 95:5) to give 8.9 g of the title product (yield: 61%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06297257B1
Source datasetuspto-grants-2001_10
ORD IDord-114a80d13eb54f2fb9c1fec91ebb6b9f
Source noteuspto-grants-2001_10