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2-Bromopyridine → rac-3,4-Dihydro-2,5,7,8-tetramethyl-2-[(2-pyridinyl)ethynyl]-2H-1-benzopyran-6-ol
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | 2-Bromopyridine | HCID 7973 | — |
| 反応物 | rac-3,4-dihydro-2-ethynyl-2,5,7,8-tetramethyl-2H-1-benzopyran-6ol | HCID 14478563 | — |
| 生成物 | rac-3,4-Dihydro-2,5,7,8-tetramethyl-2-[(2-pyridinyl)ethynyl]-2H-1-benzopyran-6-ol | HCID 15171815 | — |
反応手順
This compound was prepared by reacting rac-3,4-dihydro-2-ethynyl-2,5,7,8-tetramethyl-2H-1-benzopyran-6-ol with 2-bromopyridine as described in Example 14. The compound was isolated by chromatography as in Example 14 and was crystallized from ethyl acetate to give colorless crystals with m.p. 179°-181° C.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05260294 |
| 出典データセット | uspto-grants-1993_11 |
| ORD ID | ord-0e4093ea66ba44b08c047f32de6b472e |
| 出典メモ | uspto-grants-1993_11 |