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Chlorotrimethylsilane → (E)-ethyl 3-(4-((6-methoxy-2-(4-methoxyphenyl)benzo[b]thiophen-3-yl)oxy)phenyl)-2-methylacrylate

HRID 332875
ノート
印刷プレビュー

反応式

HRID 332875 の反応式
[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]2[C:10]([O:11][C:12]3[CH:17]=[CH:16][C:15](/[CH:18]=[C:19](\[CH3:25])/[C:20]([O:22][CH2:23][CH3:24])=[O:21])=[CH:14][CH:13]=3)=[C:9]([C:26]3[CH:31]=[CH:30][C:29]([O:32][CH3:33])=[CH:28][CH:27]=3)[S:8](=O)[C:7]=2[CH:35]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[Si](Cl)(C)(C)C>C1COCC1>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]2[C:10]([O:11][C:12]3[CH:17]=[CH:16][C:15](/[CH:18]=[C:19](\[CH3:25])/[C:20]([O:22][CH2:23][CH3:24])=[O:21])=[CH:14][CH:13]=3)=[C:9]([C:26]3[CH:27]=[CH:28][C:29]([O:32][CH3:33])=[CH:30][CH:31]=3)[S:8][C:7]=2[CH:35]=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

5

反応物 3

HCID 6397ChlorotrimethylsilaneHCID 11776TriphenylphosphineHCID 86730657(E)-ethyl 3-(4-((6-methoxy-2-(4-methoxyphenyl)-1-oxidobenzo[b]thiophen-3-yl)oxy)phenyl)-2-methylacrylate

生成物 1

HCID 86730660(E)-ethyl 3-(4-((6-methoxy-2-(4-methoxyphenyl)benzo[b]thiophen-3-yl)oxy)phenyl)-2-methylacrylate収率 77%

試薬・触媒・溶媒 1

HCID 8028
Tetrahydrofuran
溶媒

反応条件

温度
75 °C

実験手順

To a solution of (E)-ethyl 3-(4-((6-methoxy-2-(4-methoxyphenyl)-1-oxidobenzo[b]thiophen-3-yl)oxy)phenyl)-2-methylacrylate (144 mg, 0.294 mmol) in THF (6.0 mL) was added triphenylphosphine (285 mg, 1.086 mmol) and TMS-Cl (0.375 mL, 2.94 mmol). The reaction was heated to 75° C. for 7 h after which time the mixture was cooled to room temperature, quenched with sat. aq. NaHCO3 and extracted with EtOAc, the combined organic layers were collected (phase separator) and concentrated in vacuo to afford the crude product which was purified by column chromatography (SiO2, 0-40% EtOAc/Heptane) to afford (E)-ethyl 3-(4-((6-methoxy-2-(4-methoxyphenyl)benzo[b]thiophen-3-yl)oxy)phenyl)-2-methylacrylate (107 mg, 0.225 mmol, 77% yield). LC/MS (m/z, MH+): 475.3.

後処理

  1. temperaturewas cooled to room temperature
  2. customquenched with sat. aq. NaHCO3
  3. extractionextracted with EtOAc
  4. customthe combined organic layers were collected (phase separator)
  5. concentrationconcentrated in vacuo
  6. customto afford the crude product which
  7. customwas purified by column chromatography (SiO2, 0-40% EtOAc/Heptane)

出典と根拠

ORDレコード
ord-223db42571904103a901166f65bf20b9
出典データセット
uspto-grants-2014_11
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08877801B2

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