Ammonium Chloride → 9-Bromo-2-iodo-5,6-dihydroimidazo[1,2-d][1,4]benzoxazepine

HRID 1799865ノート

反応式

HRID 1799865 の反応式
C([Mg]Br)C.[Br:5][C:6]1[CH:21]=[CH:20][C:9]2[C:10]3[N:11]([C:15](I)=[C:16]([I:18])[N:17]=3)[CH2:12][CH2:13][O:14][C:8]=2[CH:7]=1.[NH4+].[Cl-]>C(OCC)C.C1COCC1>[Br:5][C:6]1[CH:21]=[CH:20][C:9]2[C:10]3[N:11]([CH:15]=[C:16]([I:18])[N:17]=3)[CH2:12][CH2:13][O:14][C:8]=2[CH:7]=1

参加物

6

反応物 3

HCID 25517Ammonium ChlorideHCID 582047669-Bromo-5,6-dihydro-2,3-diiodoimidazo(1,2-d)(1,4)benzoxazepineHCID 178418443HCID 178418443、化合物

生成物 1

HCID 582048589-Bromo-2-iodo-5,6-dihydroimidazo[1,2-d][1,4]benzoxazepine収率 81.4%

試薬・触媒・溶媒 2

HCID 3283Diethyl Ether溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

A 3.0 M solution of ethylmagnesium bromide in ethyl ether (1.1 mL) was added dropwise to a suspension of 9-bromo-2,3-diiodo-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine (1.1 g, 2.2 mmol) in THF at −15° C. The mixture was stirred and followed by LC/MS. After 1 hour, there is no starting material left and the reaction was poured into sat. NH4Cl and extracted with ethyl acetate. The organic extracts were washed with water, brine, dried over MgSO4 and concentrated. The crude residue was purified by flash column chromatography to provide 9-bromo-2-iodo-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine as white solid (0.7 g).

後処理

  1. waitleft
  2. extractionextracted with ethyl acetate
  3. washThe organic extracts were washed with water, brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated
  6. customThe crude residue was purified by flash column chromatography

出典と根拠

ORDレコード
ord-c3959e91b39c44eaae85d069db462eef
出典データセット
uspto-grants-2013_01
特許番号
US08343955B2

反応ノート

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