HuagongsheHuagongshe Chemistry Print Report · For research reference only
Triethylamine → (E)-3-{4-[8-Cyclopropyl-3,4-dimethylspiro[2H-1-benzopyran-2,1'-cyclopropane]-6-yl]ethynyl-phenyl}-2-methyl-acrylic acid ethyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 8-Cyclopropyl-6-ethynyl-3 4-dihydro-4,4-dimethylspiro[2H-1-benzopyran-2,1'-cvclopropane] | HCID 22568951 | — |
| Reactant | (E)-3-(4-Iodo-phenyl)-2-methyl-acrylic acid ethyl ester | HCID 57424206 | — |
| Catalyst | Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI) | HCID 24350 | — |
| Catalyst | HCID 178418476 | HCID 178418476 | — |
| Product | (E)-3-{4-[8-Cyclopropyl-3,4-dimethylspiro[2H-1-benzopyran-2,1'-cyclopropane]-6-yl]ethynyl-phenyl}-2-methyl-acrylic acid ethyl ester | HCID 69069630 | — |
Reaction Steps
Following General Procedure B and using 8-cyclopropyl-6-ethynyl-3,4-dihydro-4,4-dimethylspiro[2H-1-benzopyran-2,1′-cyclopropane] (0.077 g, 0.3 mmol), (E)-3-(4-iodo-phenyl)-2-methyl-acrylic acid ethyl ester (Reagent 7, 0.106 g, 0.23 mmol), triethyl amine (3 mL), copper(I)iodide (0.029 g, 0.15 mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.064 g, 0.09 mmol) followed by flash column chromatography over silica gel (230-400 mesh), the title compound was obtained (0.06 g, 45%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07468391B2 |
| Source dataset | uspto-grants-2008_12 |
| ORD ID | ord-cd682e9518cd4e8fbd6f8a9a164e8f44 |
| Source note | uspto-grants-2008_12 |