Methyl Acrylate → HCID 58573085, compound

HRID 1048262Notes

Reaction equation

HRID 1048262 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH2:8][C:9]([C:11]2[S:12][C:13]([Cl:16])=[CH:14][CH:15]=2)=[O:10])[CH:5]=[CH:6][CH:7]=1.[CH3:17][O:18][C:19](=[O:22])[CH:20]=[CH2:21].N12CCCN=C1CCCCC2>C(Cl)Cl>[Cl:1][C:2]1[CH:3]=[C:4]([CH:8]([C:9]([C:11]2[S:12][C:13]([Cl:16])=[CH:14][CH:15]=2)=[O:10])[CH2:21][CH2:20][C:19]([O:18][CH3:17])=[O:22])[CH:5]=[CH:6][CH:7]=1

Participants

5

Procedure

To a solution of 7.35 g (27.1 mmol) of 2-(3-chlorophenyl)-1-(5-chlorothiophen-2-yl)ethanone (Example 63, Step A) and acrylic acid methyl ester (2.81 mL, 31.2 mmol) in DCM (60 mL) was added 1,8-diazabicyclo[5.4.0]undec-7-ene (4.05 mL, 27.1 mmol) in DCM (10 mL) slowly at 0° C. over 20 min. Then the reaction was allowed to warm to ambient temperature. After being stirred at 25° C. for two days, the reaction mixture was diluted with DCM and washed with 2N HCl, water and sat. aq. NaCl solution. The organic extract was dried over Na2SO4. The solution was filtered and concentrated in vacuo to give the crude material as light yellow oil. The crude material was absorbed onto a plug of silica gel and purified by chromatography through a pre-packed silica gel column (220 g), eluting with a gradient of 0% to 30% EtOAc in hexane, to provided the title compound as a light-yellow oil. Mass Spectrum (ESI) m/z=357 (M+1).

Workup

  1. washwashed with 2N HCl, water and sat. aq. NaCl solution
  2. extractionThe organic extract
  3. dry with materialwas dried over Na2SO4
  4. filtrationThe solution was filtered
  5. concentrationconcentrated in vacuo
  6. customto give the crude material as light yellow oil
  7. customThe crude material was absorbed onto a plug of silica gel
  8. custompurified by chromatography through a pre-packed silica gel column (220 g)
  9. washeluting with a gradient of 0% to 30% EtOAc in hexane

Sources & evidence

ORD record
ord-cc6631b3faed471fb1ddca691d17b276
Source dataset
uspto-grants-2013_10
Patent number
US08569341B2

Reaction notes

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