Nitric Acid → 2-Methyl-3-nitro-5-(trifluoromethyl)benzoic acid

HRID 1854147ノート

反応式

HRID 1854147 の反応式
[CH3:1][C:2]1[CH:10]=[CH:9][C:8]([C:11]([F:14])([F:13])[F:12])=[CH:7][C:3]=1[C:4]([OH:6])=[O:5].[N+:15]([O-])([OH:17])=[O:16]>OS(O)(=O)=O>[CH3:1][C:2]1[C:10]([N+:15]([O-:17])=[O:16])=[CH:9][C:8]([C:11]([F:12])([F:13])[F:14])=[CH:7][C:3]=1[C:4]([OH:6])=[O:5]

参加物

4

反応物 2

HCID 944Nitric AcidHCID 27755852-Methyl-5-(trifluoromethyl)benzoic acid

生成物 1

HCID 682955012-Methyl-3-nitro-5-(trifluoromethyl)benzoic acid収率 60%

試薬・触媒・溶媒 1

HCID 1118Sulfuric Acid溶媒2 回

実験手順

A stirred solution of 2-methyl-5-(trifluoromethyl)benzoic acid (1 mmol) in conc. H2SO4 (2 mL) was cooled to −10° C. and a nitrating mixture (0.4 mL of cone. H2SO4+0.1 mL of cone. HNO3) was added to it in dropwise manner. The reaction mixture was stirred at same temperature for 20 min before warming to room temperature. The resulting precipitate was filtered off and dried to obtain 2-methyl-3-nitro-5-(trifluoromethyl)benzoic acid which was used in next step without further purification (yield 60-70%).

後処理

  1. filtrationThe resulting precipitate was filtered off
  2. customdried

出典と根拠

ORDレコード
ord-884374ea5b504213bac566c402b991cd
出典データセット
uspto-grants-2015_02
特許番号
US08962620B2

反応ノート

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