20929-51-5

Basic information

• Product Name: 4,7-Diphenyl-2-p-tolyl-3a,4,7,7a-tetrahydro-isoindole-1,3-dione
• CAS NO: 20929-51-5
• Molecular Weight: 393.485
• Mol File: 20929-51-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4,7-Diphenyl-2-p-tolyl-3a,4,7,7a-tetrahydro-isoindole-1,3-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 4,7-Diphenyl-2-p-tolyl-3a,4,7,7a-tetrahydro-isoindole-1,3-dione(20929-51-5)
• EPA Substance Registry System: 4,7-Diphenyl-2-p-tolyl-3a,4,7,7a-tetrahydro-isoindole-1,3-dione(20929-51-5)

Safety Data

• Hazardous Substances Data: 20929-51-5(Hazardous Substances Data)

Upstream product

• 1631-28-3 N-p-tolylphenylmaleimide 
• 886-65-7 trans,trans-1,4-Diphenyl-1,3-butadiene 

Relevant articles and documents

N,N'-DIMALEMIDES IN THE DIELS-ALDER REACTION. II. CATALYTIC EFFECT OF GALLIUM CHLORIDE IN THE REACTION WITH trans,trans-1,4-DIPHENYLBUTADIENE

The enthalpies of formation of the n,V complexes between gallium chloride and N,N'-dimaleimides in ratios of 1:1 and 2:1 were determined in benzene by a thermochemical method.It was shown that the stability of the complexes increases with decrease in the accepting characteristics of the bisimides.The acceleration effect in the catalyzed reaction increases in the same direction.With a ratio of 2:1 the reaction rate is twice as high as with a ratio of 1:1, and this agrees with the thermochemical data on the weak effect of conjugation between the reaction centres in the bisimides.The reaction rate is increased by approximately 1000 times in the presence of gallium chloride.The reaction rate is increased by approximately 1000 times in the presence of gallium chloride.