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Triethylamine → 4-[4-(3-Chloro-4-fluorophenyl)-5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl]-1,2,5-oxadiazol-3-ylmethyl methanesulfonate

HRID 1845745
ノート
印刷プレビュー

反応式

HRID 1845745 の反応式
[Cl:1][C:2]1[CH:3]=[C:4]([N:9]2[C:13](=[O:14])[O:12][N:11]=[C:10]2[C:15]2[C:19]([CH2:20][OH:21])=[N:18][O:17][N:16]=2)[CH:5]=[CH:6][C:7]=1[F:8].C(N(CC)CC)C.[CH3:29][S:30](Cl)(=[O:32])=[O:31]>C(Cl)Cl.O>[CH3:29][S:30]([O:21][CH2:20][C:19]1[C:15]([C:10]2[N:9]([C:4]3[CH:5]=[CH:6][C:7]([F:8])=[C:2]([Cl:1])[CH:3]=3)[C:13](=[O:14])[O:12][N:11]=2)=[N:16][O:17][N:18]=1)(=[O:32])=[O:31]
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

6

反応物 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 589418304-(3-Chloro-4-fluorophenyl)-3-[4-(hydroxymethyl)-1,2,5-oxadiazol-3-yl]-1,2,4-oxadiazol-5(4H)-one

生成物 1

HCID 589418054-[4-(3-Chloro-4-fluorophenyl)-5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl]-1,2,5-oxadiazol-3-ylmethyl methanesulfonate収率 83%

試薬・触媒・溶媒 2

HCID 962
Water
溶媒
HCID 6344Dichloromethane溶媒

反応条件

温度
0 °C

実験手順

4-(3-Chloro-4-fluorophenyl)-3-[4-(hydroxymethyl)-1,2,5-oxadiazol-3-yl]-1,2,4-oxadiazol-5(4H)-one (250 mg, 0.7996 mmol) was dissolved in anhydrous DCM (8 mL) followed by addition of triethylamine (TEA) (134 μL, 0.96 mmol). Reaction was cooled to 0° C. and methanesulfonyl chloride (68 μL, 0.88 mmol) was added dropwise. The reaction was diluted with water and extracted with ethyl acetate three times, dried with sodium sulfate, filtered, and concentrated in vacuo. The crude residue was purified by flash column chromatography eluting with 25%-70% EtOAc to yield the desired product (259 mg, 83%). MF=C12H8ClFN4O6S; LCMS calculated for C12H9ClFN4O6S (M+H)+: m/z=390.992.

後処理

  1. customReaction
  2. extractionextracted with ethyl acetate three times
  3. dry with materialdried with sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe crude residue was purified by flash column chromatography
  7. washeluting with 25%-70% EtOAc

出典と根拠

ORDレコード
ord-b0b86d5556714c3cb33f49819dfa764b
出典データセット
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08951536B2

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート