Hydrochloric Acid → Benzyl 3-fluoro-4-formylbenzoate

HRID 2233059ノート

反応式

HRID 2233059 の反応式
[H-].[Na+].[F:3][C:4]1[CH:5]=[C:6]([CH:10]=[CH:11][C:12]=1[CH:13]=[O:14])[C:7]([OH:9])=[O:8].[CH2:15](Br)[C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1.Cl>CN(C)C=O>[CH2:15]([O:8][C:7](=[O:9])[C:6]1[CH:10]=[CH:11][C:12]([CH:13]=[O:14])=[C:4]([F:3])[CH:5]=1)[C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1

参加物

6

反応物 4

HCID 313Hydrochloric AcidHCID 7498Benzyl BromideHCID 24758Sodium hydrideHCID 212845583-Fluoro-4-formylbenzoic acid

生成物 1

HCID 59295103Benzyl 3-fluoro-4-formylbenzoate

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

60% NaH (0.23 mol) is added portionwise to a solution of 3-fluoro-4-formyl benzoic acid (3, 0.19 mol) in dry dimethylformamide (DMF) (570 mL). The mixture is stirred at room temperature for 45 min. Benzyl bromide (0.23 mol) is added dropwise to the mixture. After stirring at room temperature for 5 h, the reaction mixture is poured into 1N HCl (ca. 1000 mL) and extracted twice with EtOAc. The combined extracts are washed with saturated aqueous NaHCO3, brine, dried over MgSO4, and evaporated in vacuo to give crude 3-fluoro-4-formyl benzoic acid benzyl ester (6).

後処理

  1. stirringAfter stirring at room temperature for 5 h
  2. extractionextracted twice with EtOAc
  3. washThe combined extracts are washed with saturated aqueous NaHCO3, brine
  4. dry with materialdried over MgSO4
  5. customevaporated in vacuo

出典と根拠

ORDレコード
ord-ba5eea9c5845426aa9e490824d32e897
出典データセット
uspto-grants-2010_05
特許番号
US07709470B2

反応ノート

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