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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1395272Generated: November 1, 2026

Iodoethane → 5-Ethyl-7-methyl-5H,7H-isoxazolo[3,4-d]pyrimidine-4,6-dione

https://huagongshe.com/reaction/1395272

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIodoethaneHCID 6340—
ReactantPotassium CarbonateHCID 11430—
Reactant7-Methylisoxazolo[3,4-d]pyrimidine-4,6(5H,7H)-dioneHCID 12380620—
SolventDimethylformamideHCID 6228—
Product5-Ethyl-7-methyl-5H,7H-isoxazolo[3,4-d]pyrimidine-4,6-dioneHCID 12380627—

Reaction Steps

In 50 ml of dimethylformamide is dissolved 2 g of the 7-methyl-5H,7H-isoxazolo[3,4-d]pyrimidine-4,6-dione obtained in Example 19, followed by addition of 1.6 g of potassium carbonate and 2 ml of ethyl iodide. Then, the reaction and after-treatment are carried out in the same manner as Example 23 to obtain 0.9 g of the captioned compound as colorless crystals. melting point: 87°-88° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04202975
Source datasetuspto-grants-1980_05
ORD IDord-73ba052b1f0a4826a5db1cbea2c23324
Source noteuspto-grants-1980_05