216-07-9

Basic information

• Product Name: tetrabenzo[a,c,l,n]pentacene
• Synonyms: Tetrabenz[a,c,l,n]pentacene
• CAS NO: 216-07-9
• Molecular Formula: C₃₈H₂₂
• Molecular Weight: 478.5813
• Mol File: 216-07-9.mol
• Article Data: 1

Chemical Properties

• Density: 1.32g/cm³
• Refractive Index: 1.903
• CAS DataBase Reference: tetrabenzo[a,c,l,n]pentacene(CAS DataBase Reference)
• NIST Chemistry Reference: tetrabenzo[a,c,l,n]pentacene(216-07-9)
• EPA Substance Registry System: tetrabenzo[a,c,l,n]pentacene(216-07-9)

Safety Data

• Hazardous Substances Data: 216-07-9(Hazardous Substances Data)

Upstream product

• 144493-73-2 1,2-dihydrocyclobutaphenanthren-1-ol 
• 87180-87-8 1,2-dihydrocyclobutaphenanthrenone 
• 183968-58-3 10-bromo-9-phenathryl tosylate 
• 636-28-2 1,2,4,5-tetrabromobenzene 
• 122096-12-2 tetrabenzo[a,c,l,n]pentacene-9,11,20,22-tetraone 
• 122096-09-7 10,21-dihydro-tetrabenzo[a,c,l,n]pentacene 

Relevant articles and documents

Thermodynamically Stable o-Quinodimethane: Synthesis, Structure, and Reactivity

Thermal isomerization of cyclobutaphenanthrene to o-quinodimethane was investigated. Sterically congested substituents or electron-donating substituents on the four-membered ring promoted the ring-opening, affording o-quinodimethane in a relatively stable form. Isolation of the newly prepared o-quinodimethane allowed its structural elucidation and investigation of its potential reactivities. Dual [4+2] cycloaddition of an aryne and o-quinodimethane afforded tetrabenzopentacene, demonstrating the synthetic application of the isolated compound.