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Ethyl Acetate → (R)-5-(4-{1-ethyl-1-[2-methyl-3'-(1-methyl-1-trimethylsilanyloxy-ethyl)-biphenyl-4-yl]-propyl}-2-methyl-phenoxymethyl)-dihydro-furan-2-one

HRID 546827
ノート
印刷プレビュー

反応式

HRID 546827 の反応式
C([O-])([O-])=O.[Na+].[Na+].Br[C:8]1[CH:9]=[C:10]([C:14]([CH3:21])([O:16][Si:17]([CH3:20])([CH3:19])[CH3:18])[CH3:15])[CH:11]=[CH:12][CH:13]=1.[CH2:22]([C:24]([C:43]1[CH:56]=[CH:55][C:46]([O:47][CH2:48][C@@H:49]2[O:53][C:52](=[O:54])[CH2:51][CH2:50]2)=[C:45]([CH3:57])[CH:44]=1)([C:27]1[CH:32]=[CH:31][C:30](B2OC(C)(C)C(C)(C)O2)=[C:29]([CH3:42])[CH:28]=1)[CH2:25][CH3:26])[CH3:23].C(OCC)(=O)C>CN(C)C=O>[CH2:22]([C:24]([C:43]1[CH:56]=[CH:55][C:46]([O:47][CH2:48][C@@H:49]2[O:53][C:52](=[O:54])[CH2:51][CH2:50]2)=[C:45]([CH3:57])[CH:44]=1)([C:27]1[CH:32]=[CH:31][C:30]([C:8]2[CH:13]=[CH:12][CH:11]=[C:10]([C:14]([CH3:21])([O:16][Si:17]([CH3:20])([CH3:19])[CH3:18])[CH3:15])[CH:9]=2)=[C:29]([CH3:42])[CH:28]=1)[CH2:25][CH3:26])[CH3:23]
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 4

HCID 8857Ethyl AcetateHCID 10340Sodium CarbonateHCID 57708911(R)-5-(4-{1-ethyl-1-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-propyl}-2-methyl-phenoxymethyl)-dihydro-furan-2-oneHCID 57709208HCID 57709208、化合物

生成物 1

HCID 57709148(R)-5-(4-{1-ethyl-1-[2-methyl-3'-(1-methyl-1-trimethylsilanyloxy-ethyl)-biphenyl-4-yl]-propyl}-2-methyl-phenoxymethyl)-dihydro-furan-2-one
収率 51.5%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
85 °C

実験手順

A [1,1′-bis(diphenylphosphino)ferrocene]palladium dichloride dichloromethane complex (1.49 mg, 0.002 mmol), a 2 M Na2CO3 solution (0.1 mL, 0.2 mmol) and [1-(3-bromo-phenyl)-1-methyl-ethoxy]-trimethylsilane (Example 16-(1); 26.3 mg, 0.091 mmol) were added to a solution of (R)-5-(4-{1-ethyl-1-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-propyl}-2-methyl-phenoxymethyl)-dihydro-furan-2-one (Example 15-(3); 30 mg, 0.061 mmol) in N,N-dimethylformamide (0.1 mL) at room temperature, and the mixture was stirred at 85° C. for 13.5 hours. Ethyl acetate was added to the reaction solution. The organic layer was washed with distilled water and brine and dried over anhydrous magnesium sulfate, and then the solvent was distilled off under reduced pressure. The residue was purified by silica gel chromatography (n-hexane/ethyl acetate=3/1, developed twice) to give the title compound (18 mg, 49.2%).

後処理

  1. washThe organic layer was washed with distilled water and brine
  2. dry with materialdried over anhydrous magnesium sulfate
  3. distillationthe solvent was distilled off under reduced pressure
  4. customThe residue was purified by silica gel chromatography (n-hexane/ethyl acetate=3/1

出典と根拠

ORDレコード
ord-b8e83c6879c5472482cc71e4333a3999
出典データセット
uspto-grants-2011_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07935688B2

反応ノート

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