Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Tributylvinyltin | HCID 81998 | — |
| Reactant | HCID 21107240 | HCID 21107240 | — |
| Catalyst | HCID 178418397 | HCID 178418397 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 21107234 | HCID 21107234 | 73.8% |
Reaction Steps
A solution of 8-bromo-6-methoxy-4,4-dimethyl-3,4-dihydro-2H-naphthalen-1-one (Intermediate 154, 2.83 g, 10 mmol) and tributyl(vinyl)tin (3 mL, 10 mmol) in anhydrous N,N-dimethyl formamide (30 mL) was sparged with argon and treated with tetrakis(triphenylphosphine)palladium (0) (0.3 g, 0.26 mmol). The resulting reaction mixture was heated to 91° C. for two days at the end of which it was cooled to ambient temperature, diluted with water and extracted with diethyl ether (×2). The combined organic phase was washed with water (×1), and brine (×1), dried over anhydrous magnesium sulfate, filtered and evaporated to a pale yellow oil. Flash chromatography using 15% ethyl acetate in hexane as the eluent afforded the title product (1.7 g, 73%) as a pale yellow oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US07468391B2 |
|---|
| Source dataset | uspto-grants-2008_12 |
|---|
| ORD ID | ord-c8db83c25aac452ca492014d5de5b14e |
|---|
| Source note | uspto-grants-2008_12 |
|---|