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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2176378Generated: October 30, 2026

Benzenesulfonic Acid → HCID 57453550, compound

https://huagongshe.com/reaction/2176378

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzenesulfonic AcidHCID 7371—
ReactantN-bromobutanimideHCID 67184—
ReactantHCID 57437669HCID 57437669—
Catalyst2,6-Di-tert-butyl-4-methylphenolHCID 31404—
SolventDimethylformamideHCID 6228—
ProductHCID 57453550HCID 5745355070.4%

Reaction Steps

To a dry DMF solution of 2,6-diisopropyl-4-bromophenylacetaldehyde (7.3 g, 25.8 mmol) at 0° C. was added 2,6-ditert-butyl-4-methylphenol (0.056 g, 0.26 mmol), followed by NBS (4.59 g, 25.8 mmol). After stirring for few minutes, benzenesulfonic acid (8.16 g, 51.6 mmol) was added. The resulting mixture was stirred at 35° C. for 12 h under nitrogen. After regular work up, the crude product was purified by column chromatography to afford 2-(2,6-diisopropyl-4-bromophenyl)propionaldehyde (5.4 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09065063B2
Source datasetuspto-grants-2015_06
ORD IDord-c9d01ef738084bdc999acf452ce85329
Source noteuspto-grants-2015_06