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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2363795Generated: October 29, 2026

Benzenesulfonic Acid → HCID 57453550, compound

https://huagongshe.com/reaction/2363795

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 numberUS08691988B2
Source datasetuspto-grants-2014_04
ORD IDord-56c25aa5feea49d88d1436aeb56d9e4d
Source noteuspto-grants-2014_04