Hydrochloric Acid → 4-(2-Chlorobenzyloxy)-3,5-dichlorophenol

HRID 363094ノート

反応式

HRID 363094 の反応式
C([O:9][C:10]1[CH:15]=[C:14]([Cl:16])[C:13]([O:17][CH2:18][C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=2[Cl:25])=[C:12]([Cl:26])[CH:11]=1)(=O)C1C=CC=CC=1.[OH-].[K+].Cl>CO>[Cl:25][C:20]1[CH:21]=[CH:22][CH:23]=[CH:24][C:19]=1[CH2:18][O:17][C:13]1[C:14]([Cl:16])=[CH:15][C:10]([OH:9])=[CH:11][C:12]=1[Cl:26]

参加物

5

反応物 3

HCID 313Hydrochloric AcidHCID 14797Potassium HydroxideHCID 543524561-Benzoyloxy-4-(2-chlorobenzyloxy)-3,5-dichlorobenzene

生成物 1

HCID 540958994-(2-Chlorobenzyloxy)-3,5-dichlorophenol収率 55%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

実験手順

To a mixture of 2.87 g of 1-benzoyloxy-4-(2-chlorobenzyloxy)-3,5-dichlorobenzene and 100 ml of methanol was added dropwise 5.1 g of 10% (w/w) aqueous potassium hydroxide solution, while stirring at room temperature. After stirring at room temperature for 6 hours, the reaction mixture was made weakly acidic by the addition of 10% hydrochloric acid, and the methanol was removed by distillation under reduced pressure. The residue was extracted twice with 100 ml of ethyl acetate. The combined ether layer was washed with water, and dried with anhydrous magnesium sulfate, followed by removal of the solvent by distillation under reduced pressure. The residue was subjected to silica gel chromatography, which afforded 1.17 g of 4-(2-chlorobenzyloxy)-3,5-dichlorophenol (55% yield), m.p. 108.3° C.

後処理

  1. stirringAfter stirring at room temperature for 6 hours
  2. customthe methanol was removed by distillation under reduced pressure
  3. extractionThe residue was extracted twice with 100 ml of ethyl acetate
  4. washThe combined ether layer was washed with water
  5. dry with materialdried with anhydrous magnesium sulfate
  6. customfollowed by removal of the solvent by distillation under reduced pressure

出典と根拠

ORDレコード
ord-e71ef3b9e1514184ba8122a9fd7a60ca
出典データセット
uspto-grants-1999_02
特許番号
US05872137

反応ノート

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