Iodoethane → (4-Bromo-2-tert-butylphenyl)diethylamine

HRID 1516630ノート

反応式

HRID 1516630 の反応式
[H-].[Na+].[Br:3][C:4]1[CH:10]=[CH:9][C:7]([NH2:8])=[C:6]([C:11]([CH3:14])([CH3:13])[CH3:12])[CH:5]=1.[CH2:15](I)[CH3:16].[Cl-].[NH4+].O1CC[CH2:22][CH2:21]1>CS(C)=O>[Br:3][C:4]1[CH:10]=[CH:9][C:7]([N:8]([CH2:15][CH3:16])[CH2:21][CH3:22])=[C:6]([C:11]([CH3:14])([CH3:13])[CH3:12])[CH:5]=1

参加物

7

反応物 5

HCID 6340IodoethaneHCID 8028TetrahydrofuranHCID 24758Sodium hydrideHCID 25517Ammonium ChlorideHCID 119590004-bromo-2-tert-butylphenylamine

生成物 1

HCID 66671963(4-Bromo-2-tert-butylphenyl)diethylamine収率 91%

試薬・触媒・溶媒 1

HCID 679Dimethyl Sulfoxide溶媒

実験手順

6.9 g (0.17 mol) of sodium hydride are suspended in 200 mL of tetrahydrofuran. 13 g (57 mmol) of 4-bromo-2-tert-butylaniline are added, along with 200 mL of dimethyl sulfoxide, added slowly. The mixture turns blue and, after 30 minutes, 13 mL (0.17 mol) of ethyl iodide are added and the reaction medium, which has turned white, is stirred at room temperature for 13 hours. The reaction medium is then poured into saturated ammonium chloride solution and extracted with ethyl acetate, and the organic phase is then washed twice with water. It is dried and then concentrated to dryness. The residue is purified by chromatography on silica gel (eluent: 90/10 heptane/ethyl acetate). 14.8 g of (4-bromo-2-tert-butylphenyl)diethylamine are obtained (yield=91%) in the form of a yellow oil.

後処理

  1. additionadded slowly
  2. extractionextracted with ethyl acetate
  3. washthe organic phase is then washed twice with water
  4. customIt is dried
  5. concentrationconcentrated to dryness
  6. customThe residue is purified by chromatography on silica gel (eluent: 90/10 heptane/ethyl acetate)

出典と根拠

ORDレコード
ord-57eb8d1fe4bb430cbcf4e830a223be3b
出典データセット
uspto-grants-2012_07
特許番号
US08227507B2

反応ノート

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