Tributylphosphine → 4-((5-Chloro-3-thienyl)methoxy)-1-(2-ethyl-1-methyl-1H-benzimidazol-6-yl)pyridin-2(1H)-one

HRID 2203054노트

반응식

HRID 2203054 반응식
[CH2:1]([C:3]1[N:7]([CH3:8])[C:6]2[CH:9]=[C:10]([N:13]3[CH:18]=[CH:17][C:16]([OH:19])=[CH:15][C:14]3=[O:20])[CH:11]=[CH:12][C:5]=2[N:4]=1)[CH3:2].[Cl:21][C:22]1[S:26][CH:25]=[C:24]([CH2:27]O)[CH:23]=1.C(P(CCCC)CCCC)CCC.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>C1COCC1.O>[Cl:21][C:22]1[S:26][CH:25]=[C:24]([CH2:27][O:19][C:16]2[CH:17]=[CH:18][N:13]([C:10]3[CH:11]=[CH:12][C:5]4[N:4]=[C:3]([CH2:1][CH3:2])[N:7]([CH3:8])[C:6]=4[CH:9]=3)[C:14](=[O:20])[CH:15]=2)[CH:23]=1

참가 물질

7

반응물 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 20571076(5-Chlorothiophen-3-yl)methanolHCID 896909981-(2-Ethyl-1-methyl-1H-benzimidazol-6-yl)-4-hydroxypyridin-2(1H)-one

생성물 1

HCID 896911024-((5-Chloro-3-thienyl)methoxy)-1-(2-ethyl-1-methyl-1H-benzimidazol-6-yl)pyridin-2(1H)-one수율 31%

시약·촉매·용매 2

HCID 962Water용매HCID 8028Tetrahydrofuran용매

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온도
60 °C

실험 절차

To a solution of 1-(2-ethyl-1-methyl-1H-benzimidazol-6-yl)-4-hydroxypyridin-2(1H)-one (2.5 g), (5-chloro-3-thienyl)methanol (2.48 g) and tributylphosphine (5.63 g) in THF (150 ml) was added 1,1′-(azodicarbonyl)dipiperidine (7.03 g), and the reaction mixture was stirred at 60° C. for 2 h. The reaction mixture was cooled to room temperature. The mixture was poured into water and extracted with EtOAc. The extract was washed With brine, dried over MgSO4, concentrated and purified by NH silica gel column chromatography (hexane/EtOAc then ETOAc/MeOH). The resulting solid was recrystallized from EtOH-hexane to give the title compound (1.15 g) as a white solid.

후처리

  1. temperatureThe reaction mixture was cooled to room temperature
  2. extractionextracted with EtOAc
  3. washThe extract was washed With brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated
  6. custompurified by NH silica gel column chromatography (hexane/EtOAc
  7. customThe resulting solid was recrystallized from EtOH-hexane

출처 및 근거

ORD 기록
ord-481b54a83b6948eda238d3d169434d60
출처 데이터셋
uspto-grants-2016_06
특허 번호
US09365540B2

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