Ammelide → Cyanuric acid
Reaction equation
[C:1]1(N)[NH:8][C:6](=[O:7])[NH:5][C:3](=[O:4])[N:2]=1.C1(N)NC(N)=NC(=[O:13])N=1>>[NH:8]1[C:1](=[O:13])[NH:2][C:3](=[O:4])[NH:5][C:6]1=[O:7]Participants
3
Procedure
The procedure of Example 10 was repeated with a 1-liter glass reactor and a nitrogen purge prior to the urea addition. After a two-hour stirring period, the crude cyanuric acid in the cooled slurry showed no sign of hydration at which time the slurry was vacuum filtered. The filter cake was then washed with water at which time the cyanuric acid hydrated. The hardened hydrated product was crushed and dried in an oven to produce a 93% yield of anhydrous cyanuric acid having an assay of 99+% purity and an ammelide content of 0.39% and an ammeline content of only 0.02%. Analysis of the filtrate showed an additional 6% yield of cyanuric acid.
Sources & evidence
- ORD record
- ord-52ab6270948f4b9484c1d396ac1354d5
- Source dataset
- uspto-grants-1983_12
- Patent number
- US04423216
Reaction notes
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