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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1900088Generated: November 3, 2026

2,4,5-Trimethoxybenzaldehyde → HCID 53767826, compound

https://huagongshe.com/reaction/1900088

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,4,5-TrimethoxybenzaldehydeHCID 20525—
ReactantBenzeneacetonitrile, 4-bromo-HCID 27914—
CatalystSodium HydroxideHCID 14798—
SolventEthanolHCID 702—
ProductHCID 53767826HCID 5376782695.7%

Reaction Steps

A mixture of 1.96 g (10.0 mmol) of 2,4,5-trimethoxybenzaldehyde (purchased from Lancaster), and 1.96 g (10.0 mmol) of 4-bromophenylacetonitrile (purchased from Tokyo Kasei) in 5 ml of ethanol (purchased from Kokusan Kagaku) was heated to dissolve. Two drops of 20% aqueous sodium hydroxide solution was then added and the reaction mixture was stirred over night at ambient temperature. To the resultant reaction mass was added ethanol and crushed, and the precipitate was collected and washed with ethanol twice and with hexane twice, and dried to give 3.58 g (yield: 95.6%) of α-cyano-4-bromo-2',4',5'-trimethoxystilbene (as a yellow crystalline).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05574062
Source datasetuspto-grants-1996_11
ORD IDord-f1b7f8e88ef34803a14f33835eca83dd
Source noteuspto-grants-1996_11