HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Hydroxide → 4-(3-methyl-5-(pyridin-4-yl)-3H-1,2,3-triazol-4-yl)phenol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Boron tribromide | HCID 25134 | — |
| Reactant | 4-(5-(4-methoxyphenyl)-1-methyl-1H-1,2,3-triazol-4-yl)pyridine | HCID 68576699 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | 4-(3-methyl-5-(pyridin-4-yl)-3H-1,2,3-triazol-4-yl)phenol | HCID 136375838 | 88% |
Reaction Steps
A solution of 4-(5-(4-methoxyphenyl)-1-methyl-1H-1,2,3-triazol-4-yl)pyridine (170 mg, 0.64 mmol) in dichloromethane (5 mL) was treated at RT With boron tribromide (1.27 mL of 1M in dichloromethane) and the mixture was stirred overnight. Aqueous 1N NaOH (10 mL) was added, and after being stirred 1 h the mixture was extracted with dichloromethane (20 mL). The aqueous layer was acidified to pH 7 with 2N HCl, and extracted with ethyl acetate (2×15 mL). The extracts were dried with sodium sulfate and concentrated giving a yellow solid (142 mg, 88%). 1H NMR (CDCl3, 400 mHz) δ 1H NMR (CDCl3, 400 mHz) δ 8.39 (d, 2H, J=5-6 Hz), 7.49 (d, 2H, J=5-6 Hz), 7.09 (d, 2H, J=8.7 Hz), 6.95 (d, 2H, J=8.7 Hz), 3.87 (s, 3H). MS (AP−) 351 (M−H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07429665B2 |
| Source dataset | uspto-grants-2008_09 |
| ORD ID | ord-4f0ce3a5edef47d196e49309da819707 |
| Source note | uspto-grants-2008_09 |