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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1013645Generated: October 31, 2026

2,2-Dimethyl-1,3-dioxane-4,6-dione → HCID 67318079, compound

https://huagongshe.com/reaction/1013645

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,2-Dimethyl-1,3-dioxane-4,6-dioneHCID 16249—
ReactantEthyl orthoformateHCID 31214—
Reactant3,5-DifluoroanilineHCID 96595—
SolventHexaneHCID 8058—
ProductHCID 67318079HCID 67318079—

Reaction Conditions

Temperature100 °C

Reaction Steps

In a oven dried 2-neck RBF equipped with reflux condenser and inert atmosphere, meldrum's acid (30 g, 0.208 mole) was dissolved in triethylorthoformate (185 g, 1.25 mole) and the reaction mixture was refluxed at 100° C. under nitrogen for 1 h. On complete consumption of starting material (tic), 3,5-difluoroaniline (26.8 g, 0.208 mol) was added and the heating continued for 4 h. After completion of the reaction (tic), reaction mixture was brought to RT and diluted with hexane (300 ml) when yellow solid precipitated. The solid was filtered, washed thoroughly with hexane and dried to furnish the product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07981891B2
Source datasetuspto-grants-2011_07
ORD IDord-e05a6e734e1243fd91dc67f20a8383cb
Source noteuspto-grants-2011_07