Triethylamine → (E)-3-(3-methoxyphenyl)acrylic azide

HRID 1852237노트

반응식

HRID 1852237 반응식
[CH3:1][O:2][C:3]1[CH:4]=[C:5](/[CH:9]=[CH:10]/[C:11]([OH:13])=O)[CH:6]=[CH:7][CH:8]=1.C(N(CC)CC)C.C1C=CC(P([N:35]=[N+:36]=[N-:37])(C2C=CC=CC=2)=O)=CC=1>C1C=CC=CC=1>[CH3:1][O:2][C:3]1[CH:4]=[C:5](/[CH:9]=[CH:10]/[C:11]([N:35]=[N+:36]=[N-:37])=[O:13])[CH:6]=[CH:7][CH:8]=1

참가 물질

5

반응물 3

HCID 8471TriethylamineHCID 199401P,P-Diphenylphosphinic azideHCID 6376683-Methoxycinnamic Acid

생성물 1

HCID 49782297(E)-3-(3-methoxyphenyl)acrylic azide수율 88%

시약·촉매·용매 1

HCID 241Benzene용매

실험 절차

To a solution of (E)-3-(3-methoxyphenyl)acrylic acid (15 g, 84 mmol) in benzene (100 ml) was added triethylamine (11.73 ml, 84 mmol) followed by DPPA (23.17 g, 84 mmol) at room temperature. The reaction mass was stirred at the same temperature for 18 h. The solvent was evaporated under reduced pressure and the residue was diluted with water and extracted with dichloromethane. The organic layer was dried over anhydrous sodium sulfate, filtered and evaporated to get crude compound. The crude compound was purified by conventional column chromatography (Silica gel, 60-120 mesh) using 10% ethyl acetate in pet ether as mobile phase to get the desire compound as a white solid (15 g, 88%). 1H NMR (400 MHz, CDCl3): δ ppm 7.75-7.70 (d, J=20 Hz, 1H), 7.36-6.97 (m, 4H), 6.45-6.40 (d, J=20 Hz, 1H), 3.85 (s, 3H).

후처리

  1. customThe solvent was evaporated under reduced pressure
  2. additionthe residue was diluted with water
  3. extractionextracted with dichloromethane
  4. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. customevaporated
  7. customto get crude compound
  8. customThe crude compound was purified by conventional column chromatography (Silica gel, 60-120 mesh)

출처 및 근거

ORD 기록
ord-7f6c58a2fa5946d2a539701e69dcb494
출처 데이터셋
uspto-grants-2015_02
특허 번호
US08957203B2

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