Ammonia → 4-(1-Aminoethyl)benzoic acid

HRID 981239

반응식

HRID 981239 반응식
[C:1]([C:4]1[CH:12]=[CH:11][C:7]([C:8]([OH:10])=[O:9])=[CH:6][CH:5]=1)(=O)[CH3:2].[NH3:13]>[Ni]>[NH2:13][CH:1]([C:4]1[CH:12]=[CH:11][C:7]([C:8]([OH:10])=[O:9])=[CH:6][CH:5]=1)[CH3:2]

참가 물질

4

반응물 2

HCID 222AmmoniaHCID 114704-Acetylbenzoic Acid

생성물 1

HCID 125682714-(1-Aminoethyl)benzoic acid

시약·촉매·용매 1

HCID 935Nickel촉매

실험 절차

4-Acetylbenzoic acid (4.1 g) is dissolved in 50 mL ammonia-saturated methanol. Raney nickel catalyst (1.5 g; activity grade III) is then added and the mixture reduced under hydrogen atmosphere (4750 psi) at 80° C. for 17 hrs. After removal of the catalyst by suction filtration, the filtrate is evaporated and the residue dissolved in H2O. The solution is passed through a 2.5×15 cm column of Dowex 50X8-400 resin (H+ form) and eluted with 1N NH4OH. Evaporation of the eluate leaves a residue (2.9 g) which is recrystallized from H2O/acetone and characterized as 4-(1-aminoethyl)benzoic acid, m.p. >300° C.

후처리

  1. customat 80° C.
  2. customfor 17 hrs
  3. customAfter removal of the catalyst
  4. filtrationby suction filtration
  5. customthe filtrate is evaporated
  6. dissolutionthe residue dissolved in H2O
  7. washeluted with 1N NH4OH
  8. customEvaporation of the eluate

출처 및 근거

ORD 기록
ord-5b35cc3f01e54335a1667279c098c874
출처 데이터셋
uspto-grants-1991_02
특허 번호
US04990533

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