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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 239152Generated: October 27, 2026

Water → 2,4-Dichloro-6,7-dihydrothieno[3,2-d]pyrimidine

https://huagongshe.com/reaction/239152

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDichloromethaneHCID 6344—
ReactantPhosphorus oxychlorideHCID 24813—
ReactantHCID 178518398HCID 178518398—
Product2,4-Dichloro-6,7-dihydrothieno[3,2-d]pyrimidineHCID 45789967—

Reaction Steps

500 mg 6,7-Dihydro-thieno[3,2-d]pyrimidine-2,4-diol and 10 mL phosphoroxychloride was stirred 30 min at 140° C. under microwave conditions. The reaction was added to water and then dichlormethane was added. The mixture was stirred for 20 min. The layers were separated and the dichlormethane layer was evaporated to give 586 mg of the desired product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08642774B2
Source datasetuspto-grants-2014_02
ORD IDord-fb3a7f850e1d4539a1d08dda06e9c15d
Source noteuspto-grants-2014_02