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Methyl 2-{[(benzyloxy)carbonyl]amino}-2-(dimethyl phosphono)acetate → Methyl(2Z)-2-{[(benzyloxy)carbonyl]amino}-3-(6-trifluoromethylpyridin-3-yl)acrylate

HRID 491337
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HRID 491337 반응식
[F:1][C:2]([F:12])([F:11])[C:3]1[N:8]=[CH:7][C:6]([CH:9]=O)=[CH:5][CH:4]=1.[CH2:13]([O:20][C:21]([NH:23][CH:24](P(OC)(OC)=O)[C:25]([O:27][CH3:28])=[O:26])=[O:22])[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1>C1COCC1>[CH2:13]([O:20][C:21]([NH:23]/[C:24](=[CH:9]\[C:6]1[CH:7]=[N:8][C:3]([C:2]([F:12])([F:11])[F:1])=[CH:4][CH:5]=1)/[C:25]([O:27][CH3:28])=[O:26])=[O:22])[C:14]1[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=1
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참가 물질

4

반응물 2

HCID 2734718Methyl 2-{[(benzyloxy)carbonyl]amino}-2-(dimethyl phosphono)acetateHCID 27777626-(Trifluoromethyl)pyridine-3-carboxaldehyde

생성물 1

HCID 57677192Methyl(2Z)-2-{[(benzyloxy)carbonyl]amino}-3-(6-trifluoromethylpyridin-3-yl)acrylate

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

반응 조건

온도
-70 °C

실험 절차

6-Trifluormethylpyridine-3-carbaldehyde (4.85 g, 27.70 mmol) and methyl {[(benzyloxy)carbonyl]amino}(dimethoxyphosphoryl)acetate (9.17 g, 27.70 mmol, 1.0 equivalent) are dissolved in THF (70 ml) and cooled to −70° C. At −70° C., N,N,N,N-tetramethylguanidine (6.38 g, 55.39 mmol, 6.95 ml, 2.0 equivalents) is slowly added dropwise and then stirred at −70° C. for 4 h and subsequently at RT for 12 h. The reaction mixture is concentrated and then extracted from water with ethyl acetate (2×100 ml), and the combined organic phases are washed with saturated brine and dried over sodium sulphate. The crude product after concentration in vacuo is chromatographed (silica gel, eluent: toluene then toluene/ethyl acetate 10:1). 6.93 g (66% of theory) of the title compound are obtained.

후처리

  1. concentrationThe reaction mixture is concentrated
  2. extractionextracted from water with ethyl acetate (2×100 ml)
  3. washthe combined organic phases are washed with saturated brine
  4. dry with materialdried over sodium sulphate
  5. concentrationThe crude product after concentration in vacuo
  6. customis chromatographed (silica gel, eluent

출처 및 근거

ORD 기록
ord-daff95bd46be48e1864252c0799cf579
출처 데이터셋
uspto-grants-2009_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07531507B2

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