Water → 7-Benzyloxy-6-methoxy-4-phenoxyquinazoline

HRID 453982노트

반응식

HRID 453982 반응식
[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[H-].[Na+].[CH2:10]([O:17][C:18]1[CH:27]=[C:26]2[C:21]([C:22](Cl)=[N:23][CH:24]=[N:25]2)=[CH:20][C:19]=1[O:29][CH3:30])[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1.O>CN1C(=O)CCC1>[CH2:10]([O:17][C:18]1[CH:27]=[C:26]2[C:21]([C:22]([O:7][C:1]3[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=3)=[N:23][CH:24]=[N:25]2)=[CH:20][C:19]=1[O:29][CH3:30])[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1

참가 물질

6

반응물 4

HCID 962WaterHCID 996PhenolHCID 24758Sodium hydrideHCID 106619987-(Benzyloxy)-4-chloro-6-methoxyquinazoline

생성물 1

HCID 218748147-Benzyloxy-6-methoxy-4-phenoxyquinazoline수율 83%

시약·촉매·용매 1

HCID 13387N-methyl-2-pyrrolidone용매2회

실험 절차

Phenol (29.05 g, 309 mmol) was dissolved in NMP (210 ml), sodium hydride (11.025 g, 60% dispersion in mineral oil) was added in portions with cooling and the mixture was stirred for 3 hours. The viscous suspension was diluted with NMP (180 ml) and stirred overnight. The solution of 7-benzyloxy-4-chloro-6-methoxyquinazoline was added and the suspension stirred at 100° C. for 2.5 hours. The suspension was allowed to cool to ambient temperature and poured into water (1.5 l) with vigorous stirring. The precipitate was collected by filtration, washed with water and dried under vacuum. The residue was dissolved in dichloromethane, washed with brine and filtered through phase separating paper. The filtrate was evaporated under vacuum then triturated with ether to give 7-benzyloxy-6-methoxy-4-phenoxyquinazoline (87.8 g, 83%) as a pale cream solid.

후처리

  1. temperaturewith cooling
  2. stirringstirred overnight
  3. stirringthe suspension stirred at 100° C. for 2.5 hours
  4. filtrationThe precipitate was collected by filtration
  5. washwashed with water
  6. customdried under vacuum
  7. dissolutionThe residue was dissolved in dichloromethane
  8. washwashed with brine
  9. filtrationfiltered through phase
  10. customseparating paper
  11. customThe filtrate was evaporated under vacuum
  12. customthen triturated with ether

출처 및 근거

ORD 기록
ord-14d0cc1780fa412d95c08bcd648e186f
출처 데이터셋
uspto-grants-2013_07
특허 번호
US08492560B2

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