Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Piperidine | HCID 8082 | — |
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | Binap, (A+-)- | HCID 634876 | — |
| Reactant | HCID 21886036 | HCID 21886036 | — |
| Catalyst | palladium(II) acetate | HCID 167845 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | HCID 21886727 | HCID 21886727 | 9.9% |
Reaction Steps
A mixture of 4-(3-Bromo-benzenesulfonyl)-5-methylsulfanyl-thiophene-2-carbonitrile (Example 286: step f, 200 mg, 0.534 mmol), piperidine (56 mg, 0.64 mmol), Pd(OAc)2 (24 mg, 0.11 mmol), BINAP (100 mg, 0.16 mmol) and Cs2CO3 in 2 mL of toluene under Ar was stirred at 150° C. for 16 h, then cooled to RT. The mixture was purified directly by PTLC (30% EtOAc/hexane) to give 20 mg of product as a light yellow oil: 1H-NMR (CDCl3; 400 MHz) δ 7.68 (m, 1H), 7.67 (s, 1H), 7.54–7.52 (m, 1H), 7.39–7.32 (m, 2H), 3.16–3.12 (m, 4H), 2.45 (s, 3H), 1.64–1.59 (m, 4H), 1.55–1.50 (m, 2H). Mass spectrum (ESI, m/z): Calcd. for C17H18N2O2S3, 379.1 (M+H), found 379.3.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07138530B2 |
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| Source dataset | uspto-grants-2006_11 |
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| ORD ID | ord-31c2813f7b2843d9914a5637e24947c4 |
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| Source note | uspto-grants-2006_11 |
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