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6-Ethynyl-8-isopropyl-2,2,4,4-tetramethylchroman → 3-[3-(8-Isopropyl-2,2,4,4-tetramethyl-chroman-6-ylethynyl)phenyl]-acrylic acid ethyl ester
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | 6-Ethynyl-8-isopropyl-2,2,4,4-tetramethylchroman | HCID 21107230 | — |
| 反応物 | 2-Propenoic acid, 3-(3-iodophenyl)-, ethyl ester | HCID 54500902 | — |
| 触媒 | Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI) | HCID 24350 | — |
| 触媒 | HCID 178418476 | HCID 178418476 | — |
| 溶媒 | Triethylamine | HCID 8471 | — |
| 生成物 | 3-[3-(8-Isopropyl-2,2,4,4-tetramethyl-chroman-6-ylethynyl)phenyl]-acrylic acid ethyl ester | HCID 69071707 | — |
反応手順
Following General Procedure B and using 6-ethynyl-8-isopropyl-2,2,4,4-tetramethylchroman (Intermediate 32, 0.05 g, 0.2 mmol), ethyl-3-iodo cinnamate (Reagent 6, 0.118 g, 0.39 mmol), triethyl amine (2 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), the title compound was obtained (0.058 g, 69%).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US07226951B2 |
| 出典データセット | uspto-grants-2007_06 |
| ORD ID | ord-64952de622a344069cfcfd4f64ac6441 |
| 出典メモ | uspto-grants-2007_06 |