Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 1-Iodopropane | HCID 33643 | — |
| Reactant | Lithium Hexamethyldisilazide | HCID 2733832 | — |
| Reactant | (5-Benzyloxy-4'-trifluoromethyl-biphenyl-3-yl)-acetic acid | HCID 11501912 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 11618793 | HCID 11618793 | 18% |
Reaction Steps
(5-Benzyloxy-4′-trifluoromethyl-biphenyl-3-yl)-acetic acid (0.09 g, 0.23 mmol) in THF (1.2 ml) was added dropwise to a solution of LHMDS in hexanes (0.49 ml, 0.49 mmol, 1.0M) at −15° C. After 30 min iodopropane (0.08 ml, 0.82 mmol) in THF (0.3 ml) was added and the mixture was stirred for a further 30 min at −15° C. The mixture was then quenched by pouring onto a mixture of ice and HCl solution (2M aq). This was then extracted with EtOAc (×2), washed with NaHSO3 solution (10% aq) and the organics were dried (MgSO4) and then concentrated in vacuo to afford a yellow oil. The oil was purified by flash column chromatography (EtOAc:petroleum ether) to afford 2-(5-benzyloxy-4′-trifluoromethyl-biphenyl-3-yl)-pentanoic acid (0.016 g, 0.04 mmol) in 18% yield. 1H NMR (CDCl3) δ 7.69-7-63 (m, 4H), 7.47-7.42 (m, 2H), 7.40 (t, 2H), 7.35-7.31 (m, 1H), 7.13-7.09 (m, 2H), 7.01-6.99 (m, 1H), 5.11 (s, 2H), 3.63-3.59 (m, 1H), 2.11-2.03 (m, 1H), 1.84-1.75 (m, 1H), 1.36-1.26 (m, 2H) 0.92 (t, 3H); LCMS method (A), (M-H−) 385, RT=4.9 min.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07825160B2 |
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| Source dataset | uspto-grants-2010_11 |
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| ORD ID | ord-eeadbe81e8a845fabefa0085b6f5bbaf |
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| Source note | uspto-grants-2010_11 |
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