반응 #452427

ord-ea250dc8156443db89fa58eaf174d3c0

반응 조건

상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    온도with cooling
  2. 2
    workup.ADDITIONOnce the addition
  3. 3
    기타the cooling bath was removed
  4. 4
    농축The reaction mixture was then concentrated under reduced pressure

실험 절차

To a solution of 27.7 gm (0.39 mole) ethyl isocyanate in 250 mL chloroform were added 50 gm (0.39 mole) 3-(1-pyrrolidinyl)propylamine dropwise with cooling. Once the addition was complete, the cooling bath was removed and the reaction mixture stirred at room temperature for 4 hours. The reaction mixture was then concentrated under reduced pressure to give 74.5 gm (96.4%) of the desired urea as a clear oil.

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US06126932uspto-grants-2000_10