89891-00-9

Basic information

• Product Name: Pyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione
• CAS NO: 89891-00-9
• Molecular Formula: C6H4N4O2
• Molecular Weight: 164.123
• Mol File: 89891-00-9.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Pyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione(CAS DataBase Reference)
• NIST Chemistry Reference: Pyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione(89891-00-9)
• EPA Substance Registry System: Pyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione(89891-00-9)

Safety Data

• Hazardous Substances Data: 89891-00-9(Hazardous Substances Data)

Upstream product

• 77287-34-4 formamide 
• 873-83-6 6-amino-2,4-dihydroxypyrimidine 
• 16357-69-0 4-amino-5-cyanopyrimidine 
• 124-38-9 carbon dioxide 
• 4786-51-0 3-aminopyrazine-2-carboxamide 
• 105-58-8 Diethyl carbonate 

Relevant articles and documents

Preparation method of heterocyclicpyrimidinedione compound

The invention discloses a preparation method of a heterocyclicpyrimidinedione compound and relates to the technology of medicinal chemistry. The preparation method comprises the following steps: 1) mixing an o-amino formonitrile heterocyclic compound and a catalyst to form a mixture, wherein the catalyst is [HDBN][TFE]; 2) in a CO2 environment, heating the mixture and reacting; 3) when the temperature is reduced to room temperature, adjusting the pH value to neutrality, and extracting, separating and collecting the an organic phase; drying, filtering and then vaporizing; performing column chromatography separation to obtain the heterocyclicpyrimidinedione compound. The preparation method disclosed by the invention has the advantages of low cost, environmental friendliness, simple preparation process and wide application range of substrate.

Part 4. Fused Pyrimidines. Annelation Using Formamide to Synthesize 2,4-Disubstituted-PyrimidoPyrimidines

A one-step synthesis of 2,4-disubstituted-pyrimidopyrimidines has been investigated.Cyclization of 6-amino-2,4-disubstituted-pyrimidines with formamide as solvent and reagent affords the title compounds in 50-70percent yield.Strongly electron-donating groups are required.Based on model compounds, a pathway for the cyclization is suggested.The method is an improvement on previous methods of synthesis, albeit a limited one.