HuagongsheHuagongshe Chemistry Print Report · For research reference only
Trimethylsilylacetylene → 7-Difluoromethyl-5-(3-ethoxy-phenyl)-3-trimethylsilanylethynyl-pyrazolo[1,5-a]pyrimidine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Trimethylsilylacetylene | HCID 66111 | — |
| Reactant | 3-Bromo-7-difluoromethyl-5-(3-ethoxy-phenyl)-pyrazolo[1,5-a]pyrimidine | HCID 67000427 | — |
| Product | 7-Difluoromethyl-5-(3-ethoxy-phenyl)-3-trimethylsilanylethynyl-pyrazolo[1,5-a]pyrimidine | HCID 67000340 | 96.1% |
Reaction Steps
Prepared from 3-bromo-7-difluoromethyl-5-(3-ethoxy-phenyl)-pyrazolo[1,5-a]pyrimidine (example C.19 step 3a) (20.0 g, 54 mmol) and commercially available trimethylsilylacetylene (15 mL, 109 mmol) as described in example C.1 step 3a to give the title compound (20 g, 95%) as a light brown solid. MS (ISP) 386 [(M+H)+].
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07718661B2 |
| Source dataset | uspto-grants-2010_05 |
| ORD ID | ord-b29387bbfca64eb8b9aa196d9404c593 |
| Source note | uspto-grants-2010_05 |