Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 2-(8-Fluoro-5-methylchroman-6-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane | HCID 59606766 | — |
| Reactant | HCID 66603844 | HCID 66603844 | — |
| Catalyst | HCID 178418397 | HCID 178418397 | — |
| Solvent | Water 1,2-dimethoxyethane | HCID 18180031 | — |
| Product | HCID 49806578 | HCID 49806578 | 57% |
Reaction Steps
To a solution of methyl 2-[4-iodo-2-methyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-b]pyridin-3-yl]-2-tert-butoxyacetate (0.075 g; 0.158 mmol) in a mixture of DME-water (3:1) (0.480 mL) were added potassium carbonate (0.066 g; 0.475 mmol), tetrakis(triphenylphosphine)palladium(0) (0.018 g; 0.016 mmol) and 2-(8-fluoro-5-methylchroman-6-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (0.069 g; 0.238 mmol). The solution was stirred for 30 min at 140° C. under a microwave irradiation. Ethyl acetate was added to the reaction mixture and the solution was washed with brine. The organic phase was dried over magnesium sulphate, filtered and concentrated under reduced pressure. Purification by flash chromatography on silica gel using a gradient of ethylacetate (0-40%) in heptane furnished 0.046 g (57%) of the title compound as a light yellow oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08785638B2 |
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| Source dataset | uspto-grants-2014_07 |
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| ORD ID | ord-4360540d01204e7992cae2e12daca114 |
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| Source note | uspto-grants-2014_07 |
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