HuagongsheHuagongshe Chemistry Print Report · For research reference only
Triethylamine → 2-[4-(4-Ethyl-8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalen-2-ylethynyl) phenyl]-2-methyl-propionic acid methyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | 8-Ethyl-6-ethynyl-4,4-dimethyl-3,4-dihydro-2H-naphthalen-1-one | HCID 21107253 | — |
| Reactant | 2-{4-[(8-Cyclopropyl-3,4-dihydro-4,4-dimethylspiro[2H-1-benzopyran-2,1'-cyclopropane]-6-yl)ethynyl]-phenyl}-2-methyl-propionic acid methyl ester | HCID 69077341 | — |
| Catalyst | Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI) | HCID 24350 | — |
| Catalyst | HCID 178418476 | HCID 178418476 | — |
| Solvent | Hexane | HCID 8058 | — |
| Product | 2-[4-(4-Ethyl-8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalen-2-ylethynyl) phenyl]-2-methyl-propionic acid methyl ester | HCID 57450639 | — |
Reaction Steps
Following General Procedure B and using 8-ethyl-6-ethynyl-4,4-dimethyl-3,4-dihydro-2H-naphthalen-1-one (Intermediate 180, 0.09 g, 0.39 mmol), methyl-2-(4-iodo phenyl)-2-methyl-propionate (Reagent 2, 0.152 g, 0.5 mmol), triethyl amine (8 mL), copper(I)iodide (0.024 g, 0.12 mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.087 g, 0.12 mmol) followed by flash column chromatography over silica gel (230–400 mesh) using 2–10% ethyl acetate in hexane as the eluent, the title compound was obtained as an oil (0.095 g, 59%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07226951B2 |
| Source dataset | uspto-grants-2007_06 |
| ORD ID | ord-7f3aae73e7be45a9b35ae3eda5a81e12 |
| Source note | uspto-grants-2007_06 |