Formaldehyde → HCID 131711744, compound

HRID 2049728Notes

Reaction equation

HRID 2049728 reaction equation
[CH2:1]=[O:2].[CH2:3]([N:6]1[C:13](=[O:14])[N:12]([CH2:15][CH2:16][OH:17])[C:10](=[O:11])[N:9]([CH2:18][CH2:19][OH:20])[C:7]1=[O:8])[CH2:4][OH:5].[N:21]1[C:28]([NH2:29])=[N:27][C:25]([NH2:26])=[N:24][C:22]=1[NH2:23].OS(O)(=O)=O>O>[CH2:15]([N:12]1[C:10](=[O:11])[N:9]([CH2:18][CH2:19][OH:20])[C:7](=[O:8])[N:6]([CH2:3][CH2:4][OH:5])[C:13]1=[O:14])[CH2:16][OH:17].[N:21]1[C:28]([NH2:29])=[N:27][C:25]([NH2:26])=[N:24][C:22]=1[NH2:23].[CH2:1]=[O:2]

Participants

6

Reactant 4

HCID 712Formaldehyde3×HCID 1118Sulfuric AcidHCID 7955Melamine3×HCID 132861,3,5-Tris(2-hydroxyethyl) isocyanurate3×

Product 1

HCID 131711744HCID 131711744, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
95 °C

Procedure

CH2O, tris(2-hydroxyethyl) isocyanurate and melamine were reacted in a CH2O:tris(2-hydroxyethyl) isocyanurate:melamine molar ratio=2:0.7:0.3. An aqueous formaldehyde solution at 36% by weight/volume was brought to a pH-value of about 1 by addition of dilute H2SO4 ; tris(2-hydroxyethyl) isocyanurate was then added under stirring and at 95° C., and the resulting solution was reacted 4 hours at 95° C. It was diluted with water until lowering the reaction mixture temperature to 60° C., melamine was added and it was reacted for 3 hours keeping a temperature of 60° C. A white precipitate was obtained, that was separated by filtration, repeatedly washed with a dilute solution of NaOH and finally dried in an air circulation oven at 150° C.

Workup

  1. customthe resulting solution was reacted 4 hours at 95° C
  2. customto 60° C.
  3. customit was reacted for 3 hours
  4. customa temperature of 60° C
  5. customA white precipitate was obtained
  6. customthat was separated by filtration
  7. washrepeatedly washed with a dilute solution of NaOH
  8. customfinally dried in an air circulation oven at 150° C.

Sources & evidence

ORD record
ord-83a7fd4a209e4199ab93341d25e0513e
Source dataset
uspto-grants-1980_04
Patent number
US04198493

Reaction notes

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