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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1987778Generated: November 1, 2026

Benzene → HCID 57725029, compound

https://huagongshe.com/reaction/1987778

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzeneHCID 241—
Reactantp-Toluenesulfonic acidHCID 6101—
ReactantHCID 23118277HCID 23118277—
SolventWaterHCID 962—
ProductHCID 57725029HCID 5772502999.1%

Reaction Steps

To 10.1 g of 6-nitro-4-hydroxy-2-methoxymethyl-2,5,7,8-tetramethylchroman, 200 ml of benzene was added and 1.0 g of p-toluenesulfonic acid was added, followed by heating at reflux for 2 hours using a Dean-Stark apparatus. The reaction solution was poured into water and then extracted with ethyl acetate. The organic layer was washed with an aqueous saturated sodium hydrogen carbonate solution, washed with saturated saline and then dried over anhydrous magnesium sulfate. After removing magnesium sulfate by filtration and concentrating under reduced pressure, 9.4 g of the objective oily compound was obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07553837B2
Source datasetuspto-grants-2009_06
ORD IDord-70ea1098134b4da5803b1fad1eec62f6
Source noteuspto-grants-2009_06