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2-Nitroimidazole → 5-(t-butyldimethylsiloxymethyl)-2,2-dimethyl-5-[(2-nitro-1H-imidazol-1-yl)methyl]-1,3-dioxane

HRID 514617
ノート
印刷プレビュー

反応式

HRID 514617 の反応式
Br[CH2:2][C:3]1([CH2:11][O:12][Si:13]([C:16]([CH3:19])([CH3:18])[CH3:17])([CH3:15])[CH3:14])[CH2:8][O:7][C:6]([CH3:10])([CH3:9])[O:5][CH2:4]1.[N+:20]([C:23]1[NH:24][CH:25]=[CH:26][N:27]=1)([O-:22])=[O:21].C(=O)([O-])[O-].[K+].[K+].[Cl-].[NH4+]>CN(C)C=O.O>[O:12]([CH2:11][C:3]1([CH2:2][N:24]2[CH:25]=[CH:26][N:27]=[C:23]2[N+:20]([O-:22])=[O:21])[CH2:8][O:7][C:6]([CH3:10])([CH3:9])[O:5][CH2:4]1)[Si:13]([C:16]([CH3:19])([CH3:18])[CH3:17])([CH3:15])[CH3:14]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 107012-NitroimidazoleHCID 11430Potassium CarbonateHCID 25517Ammonium ChlorideHCID 903004745-Bromomethyl-5-(t-butyldimethylsiloxymethyl)-2,2-dimethyl-1,3-dioxane

生成物 1

HCID 903005825-(t-butyldimethylsiloxymethyl)-2,2-dimethyl-5-[(2-nitro-1H-imidazol-1-yl)methyl]-1,3-dioxane収率 57.4%

試薬・触媒・溶媒 2

HCID 962Water溶媒
HCID 6228Dimethylformamide溶媒

反応条件

温度
100 °C

実験手順

578 mg (1.64 mmol equivalents) of 5-bromomethyl-5-(t-butyldimethylsiloxymethyl)-2,2-dimethyl-1,3-dioxane was dissolved in 10 mL of dimethylformamide, 186 mg (1.64 mmol equivalents) of 2-nitroimidazole and 680 mg (4.92 mmol equivalents) of potassium carbonate were added thereto, and the mixture was heated to 100° C. for 18 hours. After completion of the reaction, the reaction liquid was cooled to room temperature (25° C.), a saturated aqueous solution of ammonium chloride and water were added thereto, and the mixture was extracted three times with ethyl acetate. The combined ethyl acetate layers were washed with water and brine, then dried with anhydrous magnesium sulfate and subsequently concentrated under vacuum, and the obtained crude product was purified by silica gel column chromatography (eluent: hexane/ethyl acetate (v/v)=3/1) to give 363 mg (0.942 mmol equivalents) of 5-(t-butyldimethylsiloxymethyl)-2,2-dimethyl-5-[(2-nitro-1H-imidazol-1-yl)methyl]-1,3-dioxane.

後処理

  1. customAfter completion of the reaction
  2. customthe reaction liquid
  3. temperaturewas cooled to room temperature (25° C.)
  4. extractionthe mixture was extracted three times with ethyl acetate
  5. washThe combined ethyl acetate layers were washed with water and brine
  6. dry with materialdried with anhydrous magnesium sulfate
  7. concentrationsubsequently concentrated under vacuum
  8. customthe obtained crude product
  9. customwas purified by silica gel column chromatography (eluent: hexane/ethyl acetate (v/v)=3/1)

出典と根拠

ORDレコード
ord-39ac64494d3d4088a937819bd9bda618
出典データセット
uspto-grants-2015_08
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09107964B2

反応ノート

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