Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | Binap, (A+-)- | HCID 634876 | — |
| Reactant | 2-Butanamine, (S)- | HCID 6713753 | — |
| Reactant | HCID 86615005 | HCID 86615005 | — |
| Catalyst | palladium(II) acetate | HCID 167845 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | HCID 68814257 | HCID 68814257 | 59% |
Reaction Steps
Add 2-chloro-6-cyclopropanesulfonyl-isonicotinic acid tert-butyl ester (0.190 g, 0.607 mmol), palladium acetate (0.020 g, 0.091 mmol), racemic 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (0.057 g, 0.091 mmol), cesium carbonate (0.297 g, 0.911 mmol), and (S)-sec-butylamine (0.063 mL, 0.911 mmol) in toluene (5 mL) to a sealed tube flushed with nitrogen. Heat and stir the reaction mixture at 90° C. for 18 h. Cool and filter the mixture through a pad of filtering agent, concentrate and purify (silica gel chromatography, eluting with 20:80 ethyl acetate:hexanes) to give the title compound (0.120 g, 59%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07618978B2 |
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| Source dataset | uspto-grants-2009_11 |
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| ORD ID | ord-caf030cbc72d464cabf465ff7f141518 |
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| Source note | uspto-grants-2009_11 |
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