HuagongsheHuagongshe Chemistry Print Report · For research reference only
Cesium carbonate → Methylenedioxyphenoxy-pyrimidine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | Sesamol | HCID 68289 | — |
| Reactant | Ethyl 4-chloropyrimidine-5-carboxylate | HCID 12684326 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | Methylenedioxyphenoxy-pyrimidine | HCID 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
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06740655B2 |
| Source dataset | uspto-grants-2004_05 |
| ORD ID | ord-1159dfbe9852475ab15b09ba5f070040 |
| Source note | uspto-grants-2004_05 |