40750-27-4

Basic information

• Product Name: 8-methyl-1,3-diphenyl-5,6,7,8-tetrahydropyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione
• CAS NO: 40750-27-4
• Molecular Formula: C₂₀H₁₉N₃O₂
• Molecular Weight: 333.3838
• Mol File: 40750-27-4.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 485.3°C at 760 mmHg
• Flash Point: 211.8°C
• Density: 1.33g/cm³
• Vapor Pressure: 1.43E-09mmHg at 25°C
• Refractive Index: 1.693
• CAS DataBase Reference: 8-methyl-1,3-diphenyl-5,6,7,8-tetrahydropyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 8-methyl-1,3-diphenyl-5,6,7,8-tetrahydropyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione(40750-27-4)
• EPA Substance Registry System: 8-methyl-1,3-diphenyl-5,6,7,8-tetrahydropyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione(40750-27-4)

Safety Data

• Hazardous Substances Data: 40750-27-4(Hazardous Substances Data)

Upstream product

• 103-71-9 phenyl isocyanate 
• 81197-49-1 1-Methyl-2-methylsulfanyl-1,4,5,6-tetrahydro-pyridine-3-carboxylic acid phenylamide 
• 25355-53-7 1-methyl-6-methylsulfanyl-1,2,3,4-tetrahydro-pyridine 

Relevant articles and documents

Ketene-S,N-acetals as Synthetic Intermediates for Heterocycles. Reaction of Ketene-S,N-acetals with Aryl Isocyanates

Reaction of ketene-S,N-acetals (1-6), which are useful synthetic intermediates for heterocycles, with aryl isocyanates (7) is described.Annulation of 1-3 and 4-6 with 7 in boiling toluene gave bicyclic (8-10) and monocyclic (11-13) uracil derivatives, res

ACTIVATED LACTAMS: REACTION OF KETENE-S,N-ACETALS WITH ARYL ISOCYANATES

Reaction of ketene-S,N-acetals (1, 2, and 3) as activated lactams with aryl isocyanates (4a-d) has been described.The vinylogous ureas (6a-d and 7a-d) obtained by this reaction have been utilized as intermediates for the synthesis of some uracil derivatives.