関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Ammonium Chloride | HCID 25517 | — |
| 反応物 | Dihydrochalcone | HCID 64802 | — |
| 反応物 | Lithium Hexamethyldisilazide | HCID 2733832 | — |
| 反応物 | 2-Benzyloxy-4-bromomethyl-1-nitrobenzene | HCID 62115042 | — |
| 溶媒 | Tetrahydrofuran | HCID 8028 | — |
| 溶媒 | Ethyl Acetate | HCID 8857 | — |
| 生成物 | HCID 68838918 | HCID 68838918 | — |
反応手順
To a solution of 1,3 diphenylpropan-1-one (231 mg, 1.1 mmol) in THF (2.5 mL) at −78° C. is added dropwise LiHMDS (1M in THF, 1.3 mL), over a period of 15 min. The mixture is stirred at −78° C. for 30 min then a solution of 2-benzyloxy-4-bromomethyl-1-nitrobenzene (321 mg, 1 mmol) in THF (2.5 mL) is added over a period of 15 min. The mixture is stirred at −78° C. for 15 min, then allowed to slowly warm to RT and stirred there for 45 min. The mixture is diluted with EtOAc, cooled to −25° C. and a solution of saturated ammonium chloride is added dropwise. The organic phase is washed with saturated ammonium chloride and brine, dried over MgSO4, filtered and concentrated to afford crude product which is purified using flash chromatography to give the title compound as a gum.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US08084448B2 |
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| 出典データセット | uspto-grants-2011_12 |
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| ORD ID | ord-e10ddec916b449c189cda98ce9fb9451 |
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| 出典メモ | uspto-grants-2011_12 |
|---|