HuagongsheHuagongshe Chemistry Print Report · For research reference only
Triethylamine → 2-[4-(2,2-Diethyl-8-isopropyl-4,4-dimethyl-chroman-6-ylethynyl)-phenyl]-2-methyl-propionic acid methyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | HCID 59856227 | HCID 59856227 | — |
| 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-(2,2-Diethyl-8-isopropyl-4,4-dimethyl-chroman-6-ylethynyl)-phenyl]-2-methyl-propionic acid methyl ester | HCID 69076170 | — |
Reaction Steps
Following General Procedure B and using 2,2-diethyl-6-ethynyl-8-isopropyl-4,4-dimethyl chroman (Intermediate 29, 0.069 g, 0.24 mmol), methyl-2-(4-iodophenyl)-2-methyl-propionate (Reagent 2, 0.146 g, 0.48 mmol), triethyl amine (3 mL), copper(I)iodide (0.025 g, 0.13 mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.075 g, 0.107 mmol) followed by flash column chromatography over silica gel (230–400 mesh) using 5% ethyl acetate in hexane as the eluent, the title compound was obtained as a yellow oil (0.070 g, 62%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07226951B2 |
| Source dataset | uspto-grants-2007_06 |
| ORD ID | ord-501ef33005944771ab79729fc056a710 |
| Source note | uspto-grants-2007_06 |