Methyl Acrylate → (E)-methyl 3-(4-((6-methoxybenzo[b]thiophen-3-yl)oxy)phenyl)acrylate

HRID 332856ノート

反応式

HRID 332856 の反応式
Br[C:2]1[CH:19]=[CH:18][C:5]([O:6][C:7]2[C:8]3[CH:15]=[CH:14][C:13]([O:16][CH3:17])=[CH:12][C:9]=3[S:10][CH:11]=2)=[CH:4][CH:3]=1.[C:20]([O:24][CH3:25])(=[O:23])[CH:21]=[CH2:22].C(N(CC)CC)C>CN(C=O)C.C(Cl)Cl.O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH3:17][O:16][C:13]1[CH:14]=[CH:15][C:8]2[C:7]([O:6][C:5]3[CH:18]=[CH:19][C:2](/[CH:22]=[CH:21]/[C:20]([O:24][CH3:25])=[O:23])=[CH:3][CH:4]=3)=[CH:11][S:10][C:9]=2[CH:12]=1

参加物

8

反応物 3

HCID 7294Methyl AcrylateHCID 8471TriethylamineHCID 867306383-(4-Bromophenoxy)-6-methoxybenzo[b]thiophene

生成物 1

HCID 86730639(E)-methyl 3-(4-((6-methoxybenzo[b]thiophen-3-yl)oxy)phenyl)acrylate収率 61.1%

試薬・触媒・溶媒 4

HCID 178418476HCID 178418476、化合物触媒HCID 962Water溶媒HCID 6228Dimethylformamide溶媒HCID 6344Dichloromethane溶媒

反応条件

温度
120 °C

実験手順

To a microwave vial, 3-(4-bromophenoxy)-6-methoxybenzo[b]thiophene (500 mg, 1.49 mmol), methyl acrylate (770 mg, 8.95 mmol), and Pd(PPh3)2Cl2 (157 mg, 0.22 mmol) were suspended in DMF (12 mL) and triethylamine (1.039 mL, 7.46 mmol). The reaction was heated for 60 min at 120° C. under microwave irradiation. The reaction mixture was diluted with DCM and water. The organic layer was collected (phase separator) and concentrated to obtain the crude product. The crude material was purified by column chromatography (SiO2, 1-20% EtOAc/Heptane) to afford (E)-methyl 3-(4-((6-methoxybenzo[b]thiophen-3-yl)oxy)phenyl)acrylate (311 mg, 0.91 mmol, 61% yield) as a white solid. 1H NMR (400 MHz, CDCl3) δ ppm=1.46 (s, 3H), 3.73 (s, 3H), 6.28 (d, J=16.17 Hz, 1H), 6.59 (s, 1H), 6.90 (dd, J=8.59, 2.02 Hz, 1H), 7.00 (d, J=8.59 Hz, 2H), 7.21 (d, J=2.02 Hz, 1H), 7.37-7.48 (m, 3H), 7.59 (d, J=16.17 Hz, 1H). LC/MS (m/z, MH+): 341.1.

後処理

  1. customThe organic layer was collected (phase separator)
  2. concentrationconcentrated
  3. customto obtain the crude product
  4. customThe crude material was purified by column chromatography (SiO2, 1-20% EtOAc/Heptane)

出典と根拠

ORDレコード
ord-eb7f77cb328043eab89af1e24f970d0a
出典データセット
uspto-grants-2014_11
特許番号
US08877801B2

反応ノート

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