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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1582939Generated: October 30, 2026

Cesium carbonate → Methylenedioxyphenoxy-pyrimidine

https://huagongshe.com/reaction/1582939

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
ReactantSodium hydrideHCID 24758—
ReactantSesamolHCID 68289—
ReactantEthyl 4-chloropyrimidine-5-carboxylateHCID 12684326—
SolventDimethylformamideHCID 6228—
ProductMethylenedioxyphenoxy-pyrimidineHCID 69840746—

Reaction Steps

In reaction 1 of Scheme (10.2.0) the 4-chloro-5-carboethoxy-pyrimidine of Formula (3.0.0) in anhydrous dimethylformamide (DMF) is reacted with 3,4-methylenedioxyphenol of Formula (3.0.1) in the presence of cesium carbonate, or sodium hydride, to form the methylenedioxyphenoxy-pyrimidine of Formula (3.0.2). The reaction mixture comprising (3.0.0) and (3.0.1) is heated to a temperature of from 80° to 100° C., preferably 90° C., for a time period of from 1 hour to 24 hours, preferably 18 hours.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06740655B2
Source datasetuspto-grants-2004_05
ORD IDord-1159dfbe9852475ab15b09ba5f070040
Source noteuspto-grants-2004_05