Reaction #452427

Reaction equation

ethyl isocyanate

3-(1-pyrrolidinyl)propylamine

→

urea

Yield 96.4%

N-ethyl-N'-3-(1-pyrrolidinyl)propylurea

Yield 96.4%

Solvents

chloroform

Conditions

Workup

1. 1
   Temperaturewith cooling
2. 2
   workup.ADDITIONOnce the addition
3. 3
   Otherthe cooling bath was removed
4. 4
   ConcentrationThe reaction mixture was then concentrated under reduced pressure

Procedure

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.

Source