Melamine → HCID 131724601, compound

HRID 1008229Notes

Reaction equation

HRID 1008229 reaction equation
[N:1]1[C:8]([NH2:9])=[N:7][C:5]([NH2:6])=[N:4][C:2]=1[NH2:3].[C:10]1([P:16]([Cl:24])([C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)=[O:17])[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1>CN(C)C(=O)C>[C:10]1([P:16]([Cl:24])([C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)=[O:17])[CH:11]=[CH:12][CH:13]=[CH:14][CH:15]=1.[N:1]1[C:8]([NH2:9])=[N:7][C:5]([NH2:6])=[N:4][C:2]=1[NH2:3]

Participants

4

Reactant 2

HCID 7955Melamine2×HCID 73910Diphenylphosphinic chloride2×

Product 1

HCID 131724601HCID 131724601, compound

Reagents, catalysts & solvents 1

HCID 31374DimethylacetamideSolvent

Conditions

Temperature
120 °C

Procedure

To an one liter four-inlet flask equipped with a thermocouple and temperature controller, a reflux condenser, a nitrogen feed and a mechanical stirrer, 1 mole (126 g) Melamine (MA) and 500 ml N,N-dimethylacetamide (DAMc) were added, heated to 120° C. and then stirred until MA was dissolved completely. 1 mole (253 g) diphenyl phosphoryl chloride (DPC) was added slowly to the resulting solution. The mixture was heated gradually to a temperature of 168° C. when the addition of DPC was completed. The reaction was continued for 10 hours. The reaction mixture was cooled and filtered, and the resulting cake was dried to obtain DPC-MA (P-14). Molecular weight: 558. Yield, 94%; softening temperature, 131-135° C. Phosphorus content: 9.05%. Nitrogen content: 24.53%.

Workup

  1. customTo an one liter four-inlet flask equipped with a thermocouple and temperature controller, a reflux condenser
  2. dissolutionwas dissolved completely
  3. temperatureThe mixture was heated gradually to a temperature of 168° C. when
  4. temperatureThe reaction mixture was cooled
  5. filtrationfiltered
  6. customthe resulting cake was dried

Sources & evidence

ORD record
ord-5639d1a9ea304ad18e01a52e7640bb1d
Source dataset
uspto-grants-2004_09
Patent number
US06797821B2

Reaction notes

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