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Ethanol → Ethyl 2-[(3aR,4R,6R,6aR)-6-(6-chloro-9H-purin-9-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl]ethanesulfonate

HRID 552708
ノート
印刷プレビュー

反応式

HRID 552708 の反応式
[Cl:1][C:2]1[N:10]=[CH:9][N:8]=[C:7]2[C:3]=1[N:4]=[CH:5][N:6]2[C@H:11]1[C@@H:15]2[O:16][C:17]([CH3:20])([CH3:19])[O:18][C@@H:14]2[C@@H:13]([CH:21]=[CH:22][S:23]([O:26][CH2:27][CH3:28])(=[O:25])=[O:24])[O:12]1.C(O)C.[BH4-].[Na+]>O.[Cl-].[NH4+]>[Cl:1][C:2]1[N:10]=[CH:9][N:8]=[C:7]2[C:3]=1[N:4]=[CH:5][N:6]2[C@H:11]1[C@@H:15]2[O:16][C:17]([CH3:19])([CH3:20])[O:18][C@@H:14]2[C@@H:13]([CH2:21][CH2:22][S:23]([O:26][CH2:27][CH3:28])(=[O:24])=[O:25])[O:12]1
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 702EthanolHCID 4311764Sodium borohydrideHCID 86607308Ethyl 2-[(3aR,4R,6R,6aR)-6-(6-chloro-9H-purin-9-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl]ethenesulfonate

生成物 1

HCID 86607309Ethyl 2-[(3aR,4R,6R,6aR)-6-(6-chloro-9H-purin-9-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl]ethanesulfonate収率 93.2%

試薬・触媒・溶媒 2

HCID 962
Water
溶媒
2 回
HCID 25517Ammonium Chloride溶媒

反応条件

温度
25 °C

実験手順

Ethyl 2-[(3aR,4R,6R,6aR)-6-(6-chloro-9H-purin-9-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl]ethenesulfonate (10.500 g, 0.024370 mol) was dissolved in ethanol (200 mL, 3 mol) in a 1-necked round-bottom flask. Sodium borohydride (507.1 mg, 0.01340 mol) was added in 2 portions, 10 min apart. The reaction was stirred for a further 15 min at 25° C. The reaction was diluted with water (400 mL) and 5M ammonium chloride in water (50 mL) and was concentrated in vacuo to remove most of the ethanol. The aqueous residue was extracted with methylene chloride (2×250 mL) and the organic phase was concentrated in vacuo to yield crude product (9.83 g).

後処理

  1. concentrationwas concentrated in vacuo
  2. customto remove most of the ethanol
  3. extractionThe aqueous residue was extracted with methylene chloride (2×250 mL)
  4. concentrationthe organic phase was concentrated in vacuo

出典と根拠

ORDレコード
ord-b14f3b50a4ce422d9bd03c406fb043e7
出典データセット
uspto-grants-2011_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07951810B2

反応ノート

読み込み中…

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