Urea → 1-(Propan-2-yl)imidazolidin-2-one

HRID 21350Notes

Reaction equation

HRID 21350 reaction equation
[CH:1]([NH:4][CH2:5][CH2:6][NH2:7])([CH3:3])[CH3:2].N[C:9](N)=[O:10]>>[CH:1]([N:4]1[CH2:5][CH2:6][NH:7][C:9]1=[O:10])([CH3:3])[CH3:2]

Participants

3

Reactant 2

HCID 1176UreaHCID 88098N-Isopropylethylenediamine

Product 1

HCID 217190151-(Propan-2-yl)imidazolidin-2-oneYield 98.5%

Conditions

Temperature
125 °C

Procedure

A five-liter three necked flask equipped with a thermometer, condenser, stirrer, and nitrogen inlet was charged with 2-isopropylaminoethylamine (2550 g, 25 moles) and urea (1500 g, 25 moles). The reaction mixture was heated to 125° C. for seven hours and then 170° C. until no more gas releasing was observed. About 3155 g of N-isopropyl-2-imidazolidone was obtained. The reaction is represented as follows: ##STR10##

Workup

  1. customA five-liter three necked flask equipped with a thermometer, condenser, stirrer, and nitrogen inlet
  2. custom170° C.

Sources & evidence

ORD record
ord-4c7fef02f2054242b97550e66d28a70c
Source dataset
uspto-grants-1995_06
Patent number
US05422042

Reaction notes

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