Potassium Hydroxide → 2,3,4,5-Tetrahydro-1,4-benzoxazepin-5-one

HRID 718102

反応式

HRID 718102 の反応式
[O:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[C:4](=[O:11])[CH2:3][CH2:2]1.[N-:12]=[N+]=[N-].[Na+].[OH-].[K+]>S(=O)(=O)(O)O>[O:1]1[C:10]2[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=2[C:4](=[O:11])[NH:12][CH2:3][CH2:2]1

参加物

5

反応条件

温度
0 °C

実験手順

The chroman-4-one (5.0 g, 33.8 mmol) was dissolved in sulfuric acid (10 mL) and the mixture was cooled at 0° C. Sodium azide (2.88 g, 44.3 mmol) was added portionwise followed by some sulfuric acid (5 mL). The reaction mixture was stirred at room temperature over night. The mixture was then pour into ice-water and basified to pH=7 with potassium hydroxide pellets. This aqueous layer was extracted with ether (twice).

後処理

  1. extractionThis aqueous layer was extracted with ether (twice)

出典と根拠

ORDレコード
ord-c15779cfa74d436daa5d0b80ddb66e44
出典データセット
uspto-grants-2015_11
特許番号
US09193749B2

関連ノート

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