HuagongsheHuagongshe Chemistry Print Report · For research reference only
Tetrahydrofuran → [2-Fluoro-4-(2,2,4,4-tetramethyl-chroman-6-ylethynyl) phenyl]acetic acid ethyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Tetrahydrofuran | HCID 8028 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 2,2,4,4-Tetramethyl-6-ethynylchroman | HCID 15661138 | — |
| Reactant | Ethyl 2-fluoro-4-iodophenylacetate | HCID 18740710 | — |
| Catalyst | Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI) | HCID 24350 | — |
| Catalyst | HCID 178418476 | HCID 178418476 | — |
| Solvent | Hexane | HCID 8058 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | [2-Fluoro-4-(2,2,4,4-tetramethyl-chroman-6-ylethynyl) phenyl]acetic acid ethyl ester | HCID 69548829 | — |
Reaction Steps
Following general procedure F and using 6-ethynyl-2,2,4,4-tetramethylchroman (0.204 g, 0.95 mmol), ethyl-2-fluoro-4-iodo phenyl acetate (Reagent C, 0.26:3 g, 0.86 mmol), triethyl amine, tetrahydrofuran, copper(I)iodide (0.025 g, 0.13 mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.075 g, 0.11 mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 5-10 % ethyl acetate in hexane as the eluent, the title compound was obtained (0.21 g, 62%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06380256B1 |
| Source dataset | uspto-grants-2002_04 |
| ORD ID | ord-b5d8f58b361141c387a4bd9c55048a2e |
| Source note | uspto-grants-2002_04 |