Urea → Urea

HRID 1979826Notes

Reaction equation

HRID 1979826 reaction equation
[NH2:1][NH2:2].[NH2:3][C:4]([NH2:6])=[O:5]>O>[NH2:1][NH2:2].[NH2:3][C:4]([NH2:6])=[O:5].[NH2:1][NH:3][C:4]([NH2:6])=[O:5]

Participants

6

Reactant 2

HCID 1176UreaHCID 9321Hydrazine

Product 3

HCID 1176UreaHCID 5196SemicarbazideHCID 9321Hydrazine

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

reacting an aqueous hydrazine solution with urea at a temperature from about 80° C. to about 130° C. and at a mole ratio of hydrazine to urea from about 0.9:1 to about 1.2:1 to form a reaction mixture comprising semicarbazide, water and alcohol-insoluble by-products;

Workup

  1. customfrom about 80° C. to about 130° C.

Sources & evidence

ORD record
ord-b308ef930be64342aaefeb4ad75cc822
Source dataset
uspto-grants-1984_11
Patent number
US04482738

Reaction notes

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