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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2364061Generated: October 30, 2026

Acetone → HCID 66743319, compound

https://huagongshe.com/reaction/2364061

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetoneHCID 180—
Reactantp-Toluenesulfonic acidHCID 6101—
ReactantDimethylformamideHCID 6228—
ReactantSulfuric acid magnesium salt (1:1)HCID 24083—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 66743876HCID 66743876—
ProductHCID 66743319HCID 6674331943%

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of 5-bromo-4-methyl-3-(methylamino)thiophene-2-carboxamide (2.34 g, 9.39 mmol), acetone (10 mL, 136 mmol), MgSO4 (1.13 g, 9.39 mmol), PTSA (0.089 g, 0.47 mmol) and DMF (10 mL) was stirred at 60° C. overnight. The mixture was poured into saturated aqueous NaHCO3 and extracted with EtOAc, and the extract was dried over MgSO4 and concentrated under reduced pressure. The residue was purified by column chromatography (Purif, NH, 98:2 hexane/EtOAc to 50:50 hexane/EtOAc) to afford the title compound (1.17 g, 43%) as a pale orange solid:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08691828B2
Source datasetuspto-grants-2014_04
ORD IDord-122df6168b5c4a5d81b883ac19a22c42
Source noteuspto-grants-2014_04