Ethyl Acetate → ethyl {(3aR,5R,6R,6aR)-5-[(E)-2-(4'-chlorobiphenyl-4-yl)vinyl]-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-6-yl}acetate

HRID 2410435ノート

反応式

HRID 2410435 の反応式
Br[C:2]1[CH:7]=[CH:6][C:5](/[CH:8]=[CH:9]/[C@H:10]2[O:19][C@@H:13]3[O:14][C:15]([CH3:18])([CH3:17])[O:16][C@@H:12]3[C@@H:11]2[CH2:20][C:21]([O:23][CH2:24][CH3:25])=[O:22])=[CH:4][CH:3]=1.[Cl:26][C:27]1[CH:32]=[CH:31][C:30](B(O)O)=[CH:29][CH:28]=1.C(=O)([O-])[O-].[K+].[K+].C(OCC)(=O)C>CN(C)C=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O>[Cl:26][C:27]1[CH:32]=[CH:31][C:30]([C:2]2[CH:7]=[CH:6][C:5](/[CH:8]=[CH:9]/[C@H:10]3[O:19][C@@H:13]4[O:14][C:15]([CH3:18])([CH3:17])[O:16][C@@H:12]4[C@@H:11]3[CH2:20][C:21]([O:23][CH2:24][CH3:25])=[O:22])=[CH:4][CH:3]=2)=[CH:29][CH:28]=1

参加物

8

反応物 4

HCID 8857Ethyl AcetateHCID 11430Potassium CarbonateHCID 742994-Chlorophenylboronic acidHCID 86700975ethyl {(3aR,5R,6R,6aR)-5-[(E)-2-(4-bromophenyl)vinyl]-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-6-yl}acetate

生成物 1

HCID 86700974ethyl {(3aR,5R,6R,6aR)-5-[(E)-2-(4'-chlorobiphenyl-4-yl)vinyl]-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-6-yl}acetate

試薬・触媒・溶媒 3

HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

反応条件

温度
110 °C

実験手順

A mixture of the compound obtained from step f above (1.0 g) (4-chlorophenyl)boronic acid (0.76 g), tetrakis(triphenylphosphine)palladium (0) (0.14 g), and potassium carbonate (1.0 g) in dry dimethylformamide (10 mL) was heated at 110° C. for 4 hours. Ethyl acetate and water were added to the reaction mixture. The organic layer was separated, washed with water and brine solution, and dried over anhydrous sodium sulphate. The solvent was evaporated under reduced pressure to obtain a residue which was purified by column chromatography over silica gel using 12% ethyl acetate in hexane as eluant to afford the title compound (0.9 g).

後処理

  1. customThe organic layer was separated
  2. washwashed with water and brine solution
  3. dry with materialdried over anhydrous sodium sulphate
  4. customThe solvent was evaporated under reduced pressure
  5. customto obtain a residue which
  6. customwas purified by column chromatography over silica gel using 12% ethyl acetate in hexane as eluant

出典と根拠

ORDレコード
ord-2e5281bc9b0642a7afc3e7b9e8b5d0ba
出典データセット
uspto-grants-2014_08
特許番号
US08816073B2

反応ノート

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