Hydrochloric Acid → 1-[3-Ethoxy-4-(trifluoromethyl)phenyl]ethanone

HRID 1293592노트

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HRID 1293592 반응식
[CH2:1]([O:3][C:4]1[CH:5]=[C:6]([CH:13]=[CH:14][C:15]=1[C:16]([F:19])([F:18])[F:17])[C:7](N(OC)C)=[O:8])[CH3:2].[CH3:20][Mg]Br.Cl>C1COCC1.CC(OC)(C)C>[CH2:1]([O:3][C:4]1[CH:5]=[C:6]([C:7](=[O:8])[CH3:20])[CH:13]=[CH:14][C:15]=1[C:16]([F:17])([F:18])[F:19])[CH3:2]

참가 물질

6

반응물 3

HCID 313Hydrochloric AcidHCID 86607991HCID 86607991, 화합물HCID 178418573HCID 178418573, 화합물

생성물 1

HCID 666503361-[3-Ethoxy-4-(trifluoromethyl)phenyl]ethanone

시약·촉매·용매 2

HCID 8028Tetrahydrofuran용매HCID 15413tert-Butyl methyl ether용매

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온도
0 °C

실험 절차

To a solution of 3-ethoxy-N-methoxy-N-methyl-4-trifluoromethyl-benzamide from step 7 (15.96 g, 58 mmol) in THF (182 mL) at −5° C. was added methylmagnesium bromide (3 M in Et2O, 38.37 mL, 115 mmol). The mixture was stirred at 0° C. for 15 min, then warmed up to 23° C., stirring was continued for further 3 h at 23° C. Cooled to 0° C., 1 N HCl (274 mL) was added dropwise, stirring was continued at 23° C. for 15 min, the mixture was diluted with TBME, the phases were separated, the organic layer was washed with water and brine, dried over MgSO4. Removal of the solvent in vacuum left a yellow solid (13.10 g, 98%), which was used without further purification. MS (EI) 232.2 [M].

후처리

  1. temperaturewarmed up to 23° C.
  2. stirringstirring
  3. waitwas continued for further 3 h at 23° C
  4. temperatureCooled to 0° C.
  5. stirringstirring
  6. waitwas continued at 23° C. for 15 min
  7. customthe phases were separated
  8. washthe organic layer was washed with water and brine
  9. dry with materialdried over MgSO4
  10. customRemoval of the solvent in vacuum
  11. waitleft a yellow solid (13.10 g, 98%), which
  12. customwas used without further purification

출처 및 근거

ORD 기록
ord-8f1a3d89e20643e4b1c63da39b662136
출처 데이터셋
uspto-grants-2007_07
특허 번호
US07238808B2

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