Benzoyl Peroxide → Chrysanthemic Acid

HRID 620453

反応式

HRID 620453 の反応式
[CH3:1][C:2]([CH3:12])=[CH:3][C@H:4]1[C:6]([CH3:8])([CH3:7])[C@H:5]1[C:9]([OH:11])=[O:10].C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1.BrBr>C1(C)C=CC=CC=1.C(Cl)(Cl)(Cl)Cl>[CH3:1][C:2]([CH3:12])=[CH:3][CH:4]1[C:6]([CH3:7])([CH3:8])[CH:5]1[C:9]([OH:11])=[O:10]

参加物

6

反応物 3

HCID 7187Benzoyl PeroxideHCID 20755Chrysanthemic acid, cis-(-)-HCID 24408Bromine

生成物 1

HCID 2743Chrysanthemic Acid収率 93.5%

試薬・触媒・溶媒 2

HCID 1140Toluene溶媒HCID 5943Carbon Tetrachloride溶媒

反応条件

温度
80 °C

実験手順

2.0 g of cis-chrysanthemic acid and 43 mg of benzoyl peroxide were dissolved in 20 ml of toluene and thereto was added dropwise a solution of bromine (28 mg) in carbon tetrachloride with stirring at 80° C. over a period of 20 minutes, and the reaction mixture was stirred at the same temperature for 20 minutes. Then, a post-treatment similar to Example 1 was effected to obtain 1.87 g of chrysanthemic acid. Gas chromatographic assay thereof showed the composition: cis, 5.9%; and trans, 94.1%.

後処理

  1. stirringthe reaction mixture was stirred at the same temperature for 20 minutes

出典と根拠

ORDレコード
ord-d998974d2dc84584b7e66f0f2e2c182b
出典データセット
uspto-grants-1989_04
特許番号
US04820864

関連ノート

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