Water → Urea

HRID 1979829Notes

Reaction equation

HRID 1979829 reaction equation
O.[NH2:2][NH2:3].[NH2:4][C:5]([NH2:7])=[O:6].O>CO>[NH2:2][NH2:3].[NH2:4][C:5]([NH2:7])=[O:6].[NH2:2][NH:4][C:5]([NH2:7])=[O:6]

Participants

7

Reactant 3

HCID 962WaterHCID 1176UreaHCID 24654Hydrazine hydrate (1:1)

Product 3

HCID 1176UreaHCID 5196SemicarbazideHCID 9321Hydrazine

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

reacting hydrazine hydrate with urea at a temperature from about 100° C. to about 120° C. and at a mole ratio of hydrazine to urea from about 0.95:1 to about 1.1:1 to form a reaction mixture comprising semicarbazide, water and methanol-insoluble by-products;

Workup

  1. customfrom about 100° C. to about 120° C.

Sources & evidence

ORD record
ord-42045e91337846b8ab043ff348bbd936
Source dataset
uspto-grants-1984_11
Patent number
US04482738

Reaction notes

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