HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → 6-Bromo-2-(2-fluoroethylthio)benzo[d]thiazole
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | 2-Fluoroethyl bromide | HCID 12982 | — |
| Reactant | 6-Bromo-2-mercaptobenzothiazole | HCID 178527761 | — |
| Solvent | N-methyl-2-pyrrolidone | HCID 13387 | — |
| Product | 6-Bromo-2-(2-fluoroethylthio)benzo[d]thiazole | HCID 59283041 | 46.3% |
Reaction Steps
To 6-bromobenzo[d]thiazole-2-thiol (160 mg, 0.65 mmol) and 1-bromo-2-fluoroethane (165 mg, 1.3 mmol) in 5 mL of NMP was added Cs2CO3 (635 mg, 1.95 mmol). The mixture was stirred at rt for 5 hours. It was added water (20 mL) and precipitate was collected through filtration and washed with water (10 mL) and dried under high vacuum. The crude product was purified with silica chromatography (5% to 30% EtOAc in hexane) to afford 6-Bromo-2-(2-fluoroethylthio)benzo[d]thiazole as a yellow solid (88 mg, 46%). MS (ESI) m/z 291.9, 293.9 (M+H+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08420052B2 |
| Source dataset | uspto-grants-2013_04 |
| ORD ID | ord-91826456b21c473e84620279e1a3d5b8 |
| Source note | uspto-grants-2013_04 |