Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | 3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine | HCID 2734656 | — |
| Reactant | HCID 59578372 | HCID 59578372 | — |
| Catalyst | HCID 178418397 | HCID 178418397 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | 1,2-Dimethoxyethane | HCID 8071 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 59149722 | HCID 59149722 | 80.2% |
Reaction Steps
Sodium carbonate (114 mg, 1.08 mmol) was added to 1-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,2,3,6-tetrahydropyridin-4-yl trifluoromethanesulfonate (150 mg, 0.36 mmol) and 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (81 mg, 0.40 mmol) in a mixture of DME (2 mL) and water (0.5 mL). The mixture was bubbled with nitrogen for 10 minutes then tetrakis(triphenylphosphine)palladium(0) (20.77 mg, 0.02 mmol) was added and the mixture was stirred at 80° C. for 3 hours. The reaction mixture was cooled to room temperature and diluted with EtOAc (3 mL) and water (2 mL). The organic layer was separated and dried, and the solvent was evaporated to give crude product. Purification by flash silica chromatography, elution gradient 0 to 3% MeOH in DCM, gave 1′-[3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1′,2′,3′,6′-tetrahydro-3,4′-bipyridine (100 mg, 80%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08003649B2 |
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| Source dataset | uspto-grants-2011_08 |
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| ORD ID | ord-a1294d8bec5049ff87a9dc08cd2235cd |
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| Source note | uspto-grants-2011_08 |
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