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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2270256Generated: October 31, 2026

Sodium hydride → HCID 22633030, compound

https://huagongshe.com/reaction/2270256

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
ReactantBromomethylcyclopropaneHCID 81503—
ReactantHCID 15908875HCID 15908875—
SolventDimethylformamideHCID 6228—
ProductHCID 22633030HCID 2263303076.7%

Reaction Steps

A solution of 3-benzyloxy-6,7-difluoro-1H-quinazoline-2,4-dione (Example B, 1.22 g, 4 mmol) in 25 mL of DMF was added to a suspension of sodium hydride (0.19 g, 4.8 mmol) in 20 mL of DMF and stirred for 30 minutes. Bromomethylcyclopropane (0.6 mL, 6.0 mmol) was added, and the mixture was stirred at 25° C. for 18 hours. The reaction was quenched with 1mL of water and concentrated to an oil. The residue was dissolved in chloroform, washed with water, brine, and dried over magnesium sulfate. The solution was concentrated to give 1.10 g of the title compound as a solid, mp 121-123° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06331538B1
Source datasetuspto-grants-2001_12
ORD IDord-e1efbb9054624fe0b94e54757007a425
Source noteuspto-grants-2001_12