Triethylamine → 4-(4-Chloro-2-fluorophenoxy)-6-methoxy-7-(2-(tert-butoxycarbonyl)vinyl)quinazoline

HRID 1791606노트

반응식

HRID 1791606 반응식
C(N(CC)CC)C.[C:8]([O:12][C:13]([CH3:16])([CH3:15])[CH3:14])(=[O:11])[CH:9]=[CH2:10].C1(C(C2C=CC=CC=2)CCP)C=CC=CC=1.[Cl:33][C:34]1[CH:60]=[CH:59][C:37]([O:38][C:39]2[C:48]3[C:43](=[CH:44][C:45](OS(C(F)(F)F)(=O)=O)=[C:46]([O:49][CH3:50])[CH:47]=3)[N:42]=[CH:41][N:40]=2)=[C:36]([F:61])[CH:35]=1>CN(C=O)C.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[Cl:33][C:34]1[CH:60]=[CH:59][C:37]([O:38][C:39]2[C:48]3[C:43](=[CH:44][C:45]([CH:10]=[CH:9][C:8]([O:12][C:13]([CH3:16])([CH3:15])[CH3:14])=[O:11])=[C:46]([O:49][CH3:50])[CH:47]=3)[N:42]=[CH:41][N:40]=2)=[C:36]([F:61])[CH:35]=1

참가 물질

7

반응물 4

HCID 8471TriethylamineHCID 15458tert-Butyl acrylateHCID 220308424-(4-Chloro-2-fluorophenoxy)-6-methoxy-7-(trifluoromethylsulphonyloxy)quinazolineHCID 53436545Diphenylpropyl phosphine

생성물 1

HCID 540046344-(4-Chloro-2-fluorophenoxy)-6-methoxy-7-(2-(tert-butoxycarbonyl)vinyl)quinazoline수율 49%

시약·촉매·용매 2

HCID 167845palladium(II) acetate촉매HCID 6228Dimethylformamide용매

실험 절차

Triethylamine (33 mg, 0.33 mmol) and tert-butyl acrylate (77 mg, 0.6 mmol) followed by diphenylpropylphosphine (3.4 mg, 0.008 mmol) and palladium(II) acetate (1.7 mg, 0.0075 mmol) were added to a solution of 4-(4-chloro-2-fluorophenoxy)-6-methoxy-7-(trifluoromethylsulphonyloxy)quinazoline (136 mg, 0.3 mmol) in DMF (1.5 ml) under argon. When the addition was complete the reaction flask was purged with argon. The mixture was stirred at 80–85° C. for 6 hours. After cooling, the mixture was partitioned between ethyl acetate and water. The aqueous layer was adjusted to pH6 with 2M hydrochloric acid. The organic layer was separated, washed with water, brine, dried (MgSO4) and evaporated. The residue was purified by column chromatography eluting with methylene chloride followed by methylene chloride/ether (95/5). After removal of the solvent under vacuum, the solid was triturated with pentane/ether, collected by filtration and dried under vacuum to give 4-(4-chloro-2-fluorophenoxy)-6-methoxy-7-(2-(tert-butoxycarbonyl)vinyl)quinazoline (63 mg, 49%).

후처리

  1. additionWhen the addition
  2. customwas purged with argon
  3. temperatureAfter cooling
  4. customthe mixture was partitioned between ethyl acetate and water
  5. customThe organic layer was separated
  6. washwashed with water, brine
  7. dry with materialdried (MgSO4)
  8. customevaporated
  9. customThe residue was purified by column chromatography
  10. washeluting with methylene chloride
  11. customAfter removal of the solvent under vacuum
  12. customthe solid was triturated with pentane/ether
  13. filtrationcollected by filtration
  14. customdried under vacuum

출처 및 근거

ORD 기록
ord-53240fd6758b45f5a0295e2790b9229e
출처 데이터셋
uspto-grants-2006_07
특허 번호
US07074800B1

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