694-81-5

Basic information

• Product Name: Pyrimidine, 4,5-dimethyl- (6CI,7CI,8CI,9CI)
• Synonyms: Pyrimidine, 4,5-dimethyl- (6CI,7CI,8CI,9CI);4,5-Dimethylpyrimidine
• CAS NO: 694-81-5
• Molecular Formula: C₆H₈N₂
• Molecular Weight: 108.14
• Product Categories: PYRIMIDINE
• Mol File: 694-81-5.mol
• Article Data: 4

Chemical Properties

• Melting Point: 3°C
• Boiling Point: 192.78°C (rough estimate)
• Appearance: /
• Density: 1.0265 (rough estimate)
• Refractive Index: 1.4880 (estimate)
• CAS DataBase Reference: Pyrimidine, 4,5-dimethyl- (6CI,7CI,8CI,9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: Pyrimidine, 4,5-dimethyl- (6CI,7CI,8CI,9CI)(694-81-5)
• EPA Substance Registry System: Pyrimidine, 4,5-dimethyl- (6CI,7CI,8CI,9CI)(694-81-5)

Safety Data

• Hazardous Substances Data: 694-81-5(Hazardous Substances Data)

Upstream product

• 77287-34-4 formamide 
• 77-78-1 dimethyl sulfate 
• 78-93-3 butanone 
• 290-87-9 1,3,5-Triazine 
• 108-50-9 2,6-dimethylpyrazine 
• 14331-54-5 2,4-dimethylpyrimidine 
• 5910-89-4 2,3-dimethylpyrazine 
• 1780-32-1 2,4-dichloro-5,6-dimethylpyrimidine 
• 7732-18-5 water 
• 2036-41-1 5-methylpyrimidine 
• 917-54-4 methyllithium 

Downstream Products

• 75985-23-8 (5-methylpyrimidin-4-yl)methanamine 
• 114969-82-3 5,6-Dimethyl-pyrimidine-4-carbonitrile 
• 114969-77-6 4,5-Dimethyl-pyrimidine-2-carbonitrile 
• 114969-53-8 4,5-Dimethyl-pyrimidine 1-oxide 
• 114969-97-0 Picric acid; compound with 4,5-dimethyl-pyrimidine 3-oxide 

Relevant articles and documents

Vapor phase phototransposition chemistry of dimethylpyrazines and dimethylpyrimidines

Based on their phototransposition chemistry, the three dimethylpyrazines and four dimethylpyrimidines can be arranged into two groups. 2,5-Dimethylpyrazine, 2,5-dimethylpyrimidine, and 4,6-dimethylpyrimidine constitute a photochemical triad. Irradiation of any one member of the triad in the vapor phase results in the formation of the other two members. The other four isomers, 2,6-dimethylpyrazine, 2,3-dimethylpyrazine, 2,4- dimethylpyrimidine, and 4,5-dimethylpyrimidine constitute a photochemical tetrad. Irradiation of any one member results in the formation of the other three. In addition, 2,4-dimethylpyrimidine and 2,6-dimethylpyrazine also photoisomerize to 3,6-dimethylpyridazine. Irradiation of the last in the vapor state resulted in the four members of the tetrad.

Direct access to pyrimidines through organocatalytic inverse-electron-demand Diels-Alder reaction of ketones with 1,3,5-triazine

An organocatalytic inverse-electron-demand Diels-Alder reaction of ketones with 1,3,5-triazine through enamine catalysis has been developed. This method could furnish 4,5-disubstituted pyrimidines in good yields and high levels of regioselectivities.