216393-39-4

Basic information

• Product Name: 13H-13-dibenzofluorene
• Synonyms: 13H-13-dibenzofluorene
• CAS NO: 216393-39-4
• Molecular Weight: 532.684
• Mol File: 216393-39-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 13H-13-dibenzofluorene(CAS DataBase Reference)
• NIST Chemistry Reference: 13H-13-dibenzofluorene(216393-39-4)
• EPA Substance Registry System: 13H-13-dibenzofluorene(216393-39-4)

Safety Data

• Hazardous Substances Data: 216393-39-4(Hazardous Substances Data)

Upstream product

• 62784-66-1 bis(1-naphthyl)methanol 

Downstream Products

• 101-81-5 Diphenylmethane 
• 519-73-3 triphenylmethane 
• 239-60-1 13H-dibenzo[a,i]fluorene 
• 607-50-1 1,1'-dinaphthylmethane 
• 152635-71-7 1,1,2,2-tetra(1-naphthyl)ethane 
• 120908-27-2 13,13'-bis(dibenzofluorenyl) 

Relevant articles and documents

On the di-1-naphthylcarbene-dibenzofluorene rearrangement and the ethylenization of diarylcarbinols

Solution-spray flash vacuum thermolysis of di-1-naphthyldiazomethane (9) results in the formation of dibenzo[c,g]fluorene (12), formed via a carbene- carbene rearrangement of di-1-naphthylcarbene (10). The isomeric dibenzo[α,i]fluorene (11) claimed by Franzen and Joschek (Liebigs Ann. Chem. 1960, 633, 7) is not formed, and no dibenzofluorene is formed on thermolysis in boiling naphthalene. 11 is formed on dehydration of di-1-naphthylcarbinol (14) with phosphoric acid, but the claimed tetra-1-naphthylethylene (13) is not formed, and the so-called ethylenization of diarylcarbinols is cast in doubt generally. The compound previously believed to be 13 is 13-[di(1- naphthyl)methyl]-dibenzo[α,i]fluorene (22). The alleged cleavage of 13 into two molecules of carbene 10 is unsubstantiated.