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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2090044Generated: November 1, 2026

Water → HCID 178426082, compound

https://huagongshe.com/reaction/2090044

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant4-Chloro-2-toluidineHCID 7251—
ReactantTrimethyl orthoformateHCID 9005—
Reactant2,2-Dimethyl-1,3-dioxane-4,6-dioneHCID 16249—
SolventDimethylformamideHCID 6228—
ProductHCID 178426082HCID 178426082—

Reaction Steps

A solution of 2,2-dimethyl-1,3-dioxane-4,6-dione (1.58 g, 11.0 mmol) in trimethyl orthoformate (10 mL, 90 mmol) was refluxed for one hour. The mixture was cooled slightly, then a solution of 4-chloro-6-methylaniline (1.4 g, 10 mmol) in DMF (10 mL) was added. The mixture was refluxed for 2 hours then cooled to room temperature. The mixture was poured into cold water (150 mL) then extracted with EtOAc. The organic phase was washed with water then saturated NaCl (aq), dried over Na2SO4, filtered, then concentrated. The resulting light yellow, crystalline solid was used directly for the following step. LC4: 2.14 min. (M+H) 296.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08436015B2
Source datasetuspto-grants-2013_05
ORD IDord-b5036bd4527949ff97fbf808fe87ed70
Source noteuspto-grants-2013_05