Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 1-Ethynyl-4-methoxybenzene | HCID 251020 | — |
| Reactant | Methyl 4-hydroxy-3-iodobenzoate | HCID 11346465 | — |
| Catalyst | HCID 178418476 | HCID 178418476 | — |
| Solvent | piperidine N,N-dimethylformamide | HCID 23501187 | — |
| Product | HCID 23517377 | HCID 23517377 | 71% |
Reaction Steps
A mixture of Methyl 3-Iodo-4-hydroxybenzoate (0.7 g, 2.5 mmol), 4-Methoxyphenylacetylene (0.33 g, 2.5 mmol), Pd(Cl)2(PPh3)2 (0.05 g) and Cul (0.03 g) in DMF/Piperidine (20 ml) was heated at 6° C. After 2 hr, the reaction was cooled and poured into 2N HCl. The aqueous layer was extracted with EtOAc and then separated, dried, concentrated to give a solid. The solid was triturated with MeOH, filtered to give 142 (0.5 g, 71%): Mp=157–159° C.; 1H NMR (CDCl3) δ 8.28 (d, 1 H, J=1.3 Hz), 7.97 (dd, 1 H, J=8.5 Hz, 1.7 Hz), 7.82–7.79 (m, 2 H), 7.51 (d, 1 H, 8.5 Hz), 6.99 (d, 2 H, J=8.3 Hz), 6.93 (d, 1 H, J=9 Hz), 3.94 (s, 3 H), 3.87 (s, 3 H); MS 283 (M+H)+
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07022733B2 |
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| Source dataset | uspto-grants-2006_04 |
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| ORD ID | ord-8644713a8bd149cf986baf134956cc13 |
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| Source note | uspto-grants-2006_04 |
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