HuagongsheHuagongshe Chemistry Print Report · For research reference only
Trimethylsilylacetylene → 7-Difluoromethyl-5-(4-trifluoromethyl-phenyl)-3-trimethylsilanylethynyl-pyrazolo[1,5-a]pyrimidine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Trimethylsilylacetylene | HCID 66111 | — |
| Reactant | 3-Bromo-7-difluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine | HCID 86607993 | — |
| Product | 7-Difluoromethyl-5-(4-trifluoromethyl-phenyl)-3-trimethylsilanylethynyl-pyrazolo[1,5-a]pyrimidine | HCID 67000647 | 99% |
Reaction Steps
Prepared from 3-bromo-7-difluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine (18.6 g, 45 mmol) and commercially available trimethylsilylacetylene (11.1 mL, 80 mmol) as described in example C.1, step 3a to give 7-difluoromethyl-5-(4-trifluoromethyl-phenyl)-3-trimethylsilanylethynyl-pyrazolo[1,5-a]pyrimidine (16.3 g, 99%) as an orange-solid. MS (ISP) 410.1[(M+H)+].
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07718661B2 |
| Source dataset | uspto-grants-2010_05 |
| ORD ID | ord-12614b9367454d719c03c93f0c75c28b |
| Source note | uspto-grants-2010_05 |