88073-41-0

Basic information

• Product Name: Spiro[9H-fluorene-9,2'-thiirane], 3',3'-bis(4-methylphenyl)-
• CAS NO: 88073-41-0
• Molecular Formula: C28H22S
• Molecular Weight: 390.549
• Mol File: 88073-41-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Spiro[9H-fluorene-9,2'-thiirane], 3',3'-bis(4-methylphenyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Spiro[9H-fluorene-9,2'-thiirane], 3',3'-bis(4-methylphenyl)-(88073-41-0)
• EPA Substance Registry System: Spiro[9H-fluorene-9,2'-thiirane], 3',3'-bis(4-methylphenyl)-(88073-41-0)

Safety Data

• Hazardous Substances Data: 88073-41-0(Hazardous Substances Data)

Upstream product

• 64874-48-2 3'-phenylspirooxathiazole> 5'-oxide 
• 1141-08-8 4,4'-dimethylthiobenzophenone 
• 1143-91-5 bis(4-methylphenyl)diazomethane 
• 830-72-8 9H-fluorene-9-thione 

Relevant articles and documents

Thermal Fragmentation of a 1,5,2-Oxathiazole 5-Oxide system via Two Parallel Pathways: Interception of a Vinyl Nitrene and of a Sulphene

Heating of 1,5,2-oxathiazole 5-oxide (2) (obtained by cycloaddition of fluorene-9-thione S-oxide and benzonitrile oxide) in benzene resulted in the formation of the dispirothiazole-5',9"-fluorene> 1',1'-dioxide (3) (84percent).The formation of product (3) is explained by assuming thermal fragmentation of (2) via two parallel pathways, one involving the loss of benzonitrile to give fluorene-9-thione S,S-dioxide (5) and the other the elimination of sulphur dioxide to produce the vinyl nitrene (7).Cycloaddition of the sulphene (5) and the nitrene (7) then leads to the heterocycle (3).This mechanism is supported by the fact that the vinyl nitrene (7) could be trapped by reaction with 4,4'-dimethylthiobenzophenone, and the sulphene (5) by reaction with methanol.The alternative rationale for the formation of (3), viz. reaction of an azirine (4) with the sulphene (5), could be ruled out.