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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1294700Generated: October 30, 2026

Benzeneacetamide → HCID 44139723, compound

https://huagongshe.com/reaction/1294700

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzeneacetamideHCID 7680—
ReactantPivalaldehydeHCID 12417—
ReactantHCID 178418385HCID 178418385—
Catalystp-Toluenesulfonic acidHCID 6101—
SolventTolueneHCID 1140—
ProductHCID 44139723HCID 4413972387.5%

Reaction Steps

A suspension of phenylacetamide (2.9 g, 21.45 mmol), trimethylacetaldehyde (5.42 g, 63.00 mmol), and 1H-1,2,3-benzotriazole (2.56 g, 21.45 mmol) in toluene (75 mL) was treated with p-toluenesulfonic acid (0.200 g, 1.00 mmol). The solution was heated at reflux under Dean-Stark conditions for 10 hours, cooled gradually to ambient temperature. The mixture was concentrated under reduced pressure and purified by flash chromatography on silica gel (sequential elution with 10, 15, and 20% of ethyl acetate in methylene chloride) to provide 6.05 g of the title compound. MS (ESI+) m/z 323 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07241776B2
Source datasetuspto-grants-2007_07
ORD IDord-66024c9be4e44403a472cfbd24e32070
Source noteuspto-grants-2007_07