Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Trimethylsilylacetylene | HCID 66111 | — |
| Reactant | HCID 15284306 | HCID 15284306 | — |
| Catalyst | Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI) | HCID 24350 | — |
| Catalyst | Dichlorobis(triphenylphosphine)palladium | HCID 6102075 | — |
| Product | HCID 18321988 | HCID 18321988 | — |
Reaction Steps
A mixture of 1.96 g (6.90 mmol) of 6-bromo-4,4-diethylthiochroman (Compound 25), 0.11 g (0.59 mmol) of copper (I) iodide and 4.36 g (4.31 mmol) of triethylamine was degassed with argon for 15 minutes at -78° C. To the suspension was added 6.95 g (71 mmol) of (trimethylsilyl)acetylene then 0.41 g (58 mmol) of bis(triphenylphosphine) palladium (II) chloride. The solution was degassed with argon for an additional 5 minutes and the resulting mixture was allowed to warm to 0° C. The tube was sealed and the mixture heated to 55° C. for 15 hours.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US05663347 |
|---|
| Source dataset | uspto-grants-1997_09 |
|---|
| ORD ID | ord-b81504ca106c41d4a41ebebfc70627c2 |
|---|
| Source note | uspto-grants-1997_09 |
|---|
