Water → 2-(2,4-Dinitrophenyl)ethanol

HRID 1042614

反応式

HRID 1042614 の反応式
[N+:1]([C:4]1[CH:9]=[C:8]([N+:10]([O-:12])=[O:11])[CH:7]=[CH:6][C:5]=1[CH2:13][C:14](O)=[O:15])([O-:3])=[O:2].O.CCCCCC>O1CCCC1>[N+:1]([C:4]1[CH:9]=[C:8]([N+:10]([O-:12])=[O:11])[CH:7]=[CH:6][C:5]=1[CH2:13][CH2:14][OH:15])([O-:3])=[O:2]

参加物

5

反応物 3

HCID 962WaterHCID 8058HexaneHCID 2215132,4-Dinitrophenylacetic acid

生成物 1

HCID 118307342-(2,4-Dinitrophenyl)ethanol収率 98%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒2 回

実験手順

22.6 g (100 mmol) 2,4-dinitrophenylacetic acid are dissolved in 150 ml tetrahydrofuran and added dropwise in a the course of 2 hours to 300 ml (300 mmol) of a borane-tetrahydrofuran complex 1.0 M solution in tetrahydrofuran. After 3 hours at 25° C., 200 ml water are carefully added. The reaction mixture is then partitioned between ethyl acetate and water; the organic phase was washed repeatedly with water, dried over sodium sulfate, filtered and concentrated by rotary evaporation. Chromatography of the residue on 400 g silica gel using toluene:ethyl acetate 1:1 as eluant and crystallization form ethylacetate:hexane mixture to yield 20.7 g (98%) of 2-(2,4-dinitrophenyl)ethanol as yellowish crystals.

後処理

  1. customThe reaction mixture is then partitioned between ethyl acetate and water
  2. washthe organic phase was washed repeatedly with water
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated by rotary evaporation
  6. customcrystallization
  7. customform ethylacetate

出典と根拠

ORDレコード
ord-31e81d2c1f974e318f190afb7a751902
出典データセット
uspto-grants-2013_10
特許番号
US08557922B2

関連ノート

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