HuagongsheHuagongshe Chemistry Print Report · For research reference only
Cesium carbonate → 2-methyl-1-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]propan-2-ol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | Isobutylene oxide | HCID 11208 | — |
| Reactant | 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole | HCID 2774010 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | 2-methyl-1-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]propan-2-ol | HCID 58204131 | — |
Reaction Conditions
| Temperature | 120 °C |
|---|
Reaction Steps
A mixture of 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (500 mg, 2.57 mmol), Cs2CO3 (840 mg, 2.57 mmol) and 2,2-dimethyloxirane (2 mL) was heated in a sealed vial at 120° C. for 3 minutes with stirring in a Smith Synthesizer microwave (at 300 W), then allowed to cool and diluted with CH2Cl2. The resulting suspension was filtered, the filtrate was concentrated to afford the title compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08293738B2 |
| Source dataset | uspto-grants-2012_10 |
| ORD ID | ord-d23d92f15f85480198f3d0f6c677561a |
| Source note | uspto-grants-2012_10 |