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Sodium Hydroxide → 3-(2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyloxy)-4-[(4-bromophenyl)methyl]-5-isopropyl-1H-pyrazole

HRID 2223584
ノート
印刷プレビュー

反応式

HRID 2223584 の反応式
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][C:9]2[C:10](=[O:17])[NH:11][NH:12][C:13]=2[CH:14]([CH3:16])[CH3:15])=[CH:4][CH:3]=1.[CH3:18][C:19]([O:21][CH2:22][C@H:23]1[O:28][C@H:27](Br)[C@H:26]([O:30][C:31]([CH3:33])=[O:32])[C@@H:25]([O:34][C:35]([CH3:37])=[O:36])[C@@H:24]1[O:38][C:39]([CH3:41])=[O:40])=[O:20].[OH-].[Na+]>ClCCl.[Cl-].C([N+](CCCC)(CCCC)CCCC)C1C=CC=CC=1>[C:31]([O:30][C@@H:26]1[C@@H:25]([O:34][C:35](=[O:36])[CH3:37])[C@H:24]([O:38][C:39](=[O:40])[CH3:41])[C@@H:23]([CH2:22][O:21][C:19](=[O:20])[CH3:18])[O:28][C@H:27]1[O:17][C:10]1[C:9]([CH2:8][C:5]2[CH:6]=[CH:7][C:2]([Br:1])=[CH:3][CH:4]=2)=[C:13]([CH:14]([CH3:15])[CH3:16])[NH:12][N:11]=1)(=[O:32])[CH3:33]
参加物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 14798Sodium HydroxideHCID 101776alpha-D-Glucopyranosyl bromide, tetraacetateHCID 589519854-[(4-Bromophenyl)methyl]-1,2-dihydro-5-isopropyl-3h-pyrazol-3-one

生成物 1

HCID 685357693-(2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyloxy)-4-[(4-bromophenyl)methyl]-5-isopropyl-1H-pyrazole収率 38.9%

試薬・触媒・溶媒 2

HCID 159952
Benzyltributylammonium chloride
触媒
HCID 6344Dichloromethane溶媒

実験手順

To a suspension of 4-[(4-bromophenyl)methyl]-1,2-dihydro-5-isopropyl-3H-pyrazol-3-one (5.0 g) in dichloromethane (50 mL) were added acetobromo-α-D-glucose (7.0 g), benzyltri(n-butyl)ammonium chloride (5.3 g) and 5 mol/L aqueous sodium hydroxide solution (8.5 mL), and the mixture was stirred at room temperature overnight. The organic layer was separated, and the solvent was removed under reduced pressure. The residue was purified by column chromatography on silica gel (eluent: n-hexane/ethyl acetate=1/1) to give the title compound (4.12 g).

後処理

  1. customThe organic layer was separated
  2. customthe solvent was removed under reduced pressure
  3. customThe residue was purified by column chromatography on silica gel (eluent: n-hexane/ethyl acetate=1/1)

出典と根拠

ORDレコード
ord-a2d7b11bf4404e059718c042ba284c99
出典データセット
uspto-grants-2008_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07375087B2

反応ノート

読み込み中…

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