4828-84-6

Basic information

• Product Name: diazotetraphenylcyclopentadiene
• Synonyms: diazotetraphenylcyclopentadiene
• CAS NO: 4828-84-6
• Molecular Weight: 396.491
• Mol File: 4828-84-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: diazotetraphenylcyclopentadiene(CAS DataBase Reference)
• NIST Chemistry Reference: diazotetraphenylcyclopentadiene(4828-84-6)
• EPA Substance Registry System: diazotetraphenylcyclopentadiene(4828-84-6)

Safety Data

• Hazardous Substances Data: 4828-84-6(Hazardous Substances Data)

Upstream product

• 15570-45-3 1,2,3,4-tetraphenylcyclopentadiene 
• 479-33-4 2,3,4,5-tetraphenylcyclopenta-2,4-dienone 
• 32729-47-8 2,3,4,5-tetraphenylcyclopentadiene hydrazone 

Downstream Products

• 16252-15-6 5-Cyclohexyl-1.2.3.4-tetraphenylcyclopentadien-(1.3) 
• 16342-71-5 2-Methyl-2-ethyl-4.5.6.7-tetraphenyl-spiro<2.4>heptadien-(4.6) 
• 4995-66-8 5-Acetoxy-1,2,3,4-tetraphenylcyclopenta-1,3-diene 
• 31125-43-6 1,2,3-Triphenyl-5-ethoxycarbonyl-1H-benzinden 
• 27877-93-6 1,3,5-Trimethyl-2-(2,3,4,5-tetraphenyl-cyclopenta-2,4-dienyl)-benzene 
• 53174-37-1 N-[1-(4-Nitro-phenyl)-meth-(Z)-ylidene]-N'-(2,3,4,5-tetraphenyl-cyclopenta-2,4-dienylidene)-hydrazine 
• 16252-25-8 1.2.2-Trimethyl-4.5.6.7-tetraphenyl-spiro<2.4>heptadien-(4.6) 
• 54251-82-0 1,2-Dimethyl-4,5,6,7-tetraphenyl-spiro[2.4]hepta-1,4,6-triene 
• 54251-83-1 1,2-Diethyl-4,5,6,7-tetraphenyl-spiro[2.4]hepta-1,4,6-triene 
• 7727-37-9 nitrogen 
• 16311-79-8 5-Cycloheptyl-1,2,3,4-tetraphenyl-cyclopentadien-(1,3) 
• 13975-96-7 7.8.9.10-Tetraphenyl-sesquifulvalen 
• 35160-46-4 N-phenyl-2,3,4,5-tetraphenylcyclopentadienone anil 
• 32729-47-8 2,3,4,5-tetraphenylcyclopentadiene hydrazone 

Relevant articles and documents

Cyclopentadienylidenephosphinazines

Diazocyclopentadienes which are not alkyl- or aryl-substituted at both the 2- and 5-positions react readily with triphenylphosphine to form cyclopentadienylidenephosphinazines. If both of these positions are so substituted phosphinazines are not formed. A phosphinazine was obtained from 2-chloro-3,4,5-triphenyldiazocyclopentadiene while its 2-nitro-analogue apparently formed a readily hydrolysed phosphinazine. Diazotetraphenylcyclopentadiene formed a phosphinazine with tri-n-butylphosphine. The reasons for these differences in reactivity are discussed. When heated to higher temperatures some of the phosphinazines decomposed with loss of nitrogen to give phosphonium cyclopentadienylides. Electron-withdrawing substituents in the five-membered ring make the phosphinazines susceptible to ready hydrolysis to cyclopentadienone hydrazones. Cyclopentadienylidenephosphinazines are protonated by mineral acids on nitrogen rather than on the cyclopentadiene ring.