Dichlorodiphenylmethane → 4-Bromo-7-methoxy-2,2-diphenyl-1,3-benzodioxole

HRID 2084825

反応式

HRID 2084825 の反応式
[Br:1][C:2]1[CH:8]=[CH:7][C:6]([O:9][CH3:10])=[C:4]([OH:5])[C:3]=1[OH:11].[C:12]1([C:18]([C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)(Cl)Cl)[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1.C(=O)(O)[O-].[Na+]>>[Br:1][C:2]1[C:3]2[O:11][C:18]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=3)([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=3)[O:5][C:4]=2[C:6]([O:9][CH3:10])=[CH:7][CH:8]=1

参加物

4

反応物 3

HCID 16327DichlorodiphenylmethaneHCID 516892Sodium BicarbonateHCID 37058743-Bromo-6-methoxybenzene-1,2-diol

生成物 1

HCID 227343704-Bromo-7-methoxy-2,2-diphenyl-1,3-benzodioxole

実験手順

3-Bromo-6-methoxycatechol (3.87 g) and diphenyl-dichloromethane (4.61 g) were heated at 170° C. with stirring without a solvent. After being allowed to stand for cooling, a saturated aqueous solution of sodium bicarbonate was added to the mixture, followed by extraction with ether. The organic layer was washed with a saturated saline and dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The residue was triturated with methanol to give Compound IIbl-a (4.7 g, 69%) as a white solid.

後処理

  1. temperaturefor cooling
  2. extractionfollowed by extraction with ether
  3. washThe organic layer was washed with a saturated saline
  4. dry with materialdried over anhydrous magnesium sulfate
  5. distillationthe solvent was distilled off under reduced pressure
  6. customThe residue was triturated with methanol
  7. customto give Compound IIbl-a (4.7 g, 69%) as a white solid

出典と根拠

ORDレコード
ord-678a91e7c7294039a4bfc238d7956dda
出典データセット
uspto-grants-2004_04
特許番号
US06716987B1

関連ノート

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