Urea → N-(2-Amino-2-methylpropyl)urea

HRID 2107566노트

반응식

HRID 2107566 반응식
[NH2:1][CH2:2][C:3]([NH2:6])([CH3:5])[CH3:4].[NH2:7][C:8](N)=[O:9]>O>[CH3:4][C:3]([NH2:6])([CH3:5])[CH2:2][NH:1][C:8]([NH2:7])=[O:9]

참가 물질

4

반응물 2

HCID 1176UreaHCID 131282-Methylpropylenediamine

생성물 1

HCID 13603863N-(2-Amino-2-methylpropyl)urea

시약·촉매·용매 1

HCID 962Water용매

실험 절차

Alternatively, the urea of this example was prepared as follows: A mixture of 26.5 g (0.3 mol) of 1,2-diamino-2-methylpropane, and 18 g (0.3 mol) of urea in 150 ml of water was refluxed for 4 hours. The mixture was evaporated in vacuo. The residue was dissolved in chloroform, filtered and evaporated to form a solid which was recrystallized in ethyl acetate to give 15 g of product (38%), m.p. 87°-90° C. The NMR and IR spectra were consistent with the assigned structre.

후처리

  1. temperaturewas refluxed for 4 hours
  2. customThe mixture was evaporated in vacuo
  3. dissolutionThe residue was dissolved in chloroform
  4. filtrationfiltered
  5. customevaporated
  6. customto form a solid which
  7. customwas recrystallized in ethyl acetate

출처 및 근거

ORD 기록
ord-6d997594f23249eb873f083e343f9c0d
출처 데이터셋
uspto-grants-1990_06
특허 번호
US04935421

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