Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Benzyl Alcohol | HCID 244 | — |
| Reactant | 1,10-Phenanthroline | HCID 1318 | — |
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | HCID 67538830 | HCID 67538830 | — |
| Catalyst | Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI) | HCID 24350 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | HCID 67538861 | HCID 67538861 | 86.4% |
Reaction Steps
A sealed tube charged with 4-(5-Iodo-pyrimidin-4-yl)-piperazine-1-carboxylic acid tert-butyl ester (780 mg, 2.00 mmol), CuI (38 mg, 0.20 mmol), 1,10-phenathroline (72 mg, 0.4 mmol), Cs2CO3 (912 mg, 2.8 mmol), benzyl alcohol (0.62 mL, 6.0 mmol) and toluene (2 mL) was heated at 110° C. for 40 hours. The resulting suspension was cooled to room temperature and filtered through a silica gel pad, eluting with EtOAc. Evaporation of the solvent followed by flash chromatography on silica gel (10:1 hexanes/EtOAc) provided 4-(5-benzyloxypyrimidin-4-yl)-piperazine-1-carboxylic acid tert-butyl ester (0.640 g, 86%) as a white solid. 1H NMR (CDCl3, 400 MHz) δ 8.36 (s, 1H), 7.99 (s, 1H), 7.39 (m, 5H), 5.08 (s, 2H), 3.73 (m, 4H), 3.48 (m, 4H), 1.47 (s, 9H). LCMS (APCI+) m/z 371 [M+H]+; Rt=2.52 minutes.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08680114B2 |
|---|
| Source dataset | uspto-grants-2014_03 |
|---|
| ORD ID | ord-2fb6781780ae4c5f8fe90d96d58b87d2 |
|---|
| Source note | uspto-grants-2014_03 |
|---|