108545-97-7

Basic information

• Product Name: Pyrene, 2-(1,1-dimethylethyl)-4,5,9,10-tetrahydro-7-methyl-
• CAS NO: 108545-97-7
• Molecular Formula: C21H24
• Molecular Weight: 276.422
• Mol File: 108545-97-7.mol

Chemical Properties

• CAS DataBase Reference: Pyrene, 2-(1,1-dimethylethyl)-4,5,9,10-tetrahydro-7-methyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Pyrene, 2-(1,1-dimethylethyl)-4,5,9,10-tetrahydro-7-methyl-(108545-97-7)
• EPA Substance Registry System: Pyrene, 2-(1,1-dimethylethyl)-4,5,9,10-tetrahydro-7-methyl-(108545-97-7)

Safety Data

• Hazardous Substances Data: 108545-97-7(Hazardous Substances Data)

Upstream product

• 108571-29-5 8-fluoro-16-methyl-5,15-di-t-butyl<2.2>metacyclophane 
• 108545-93-3 6-tert-Butyl-16-fluoro-15-methyl-tricyclo[9.3.1.1^4,8]hexadeca-1⁽¹⁵⁾,4,6,8⁽¹⁶⁾,11,13-hexaene 

Downstream Products

• 3442-78-2 2-methylpyrene 

Relevant articles and documents

Metacyclophanes and Related Compounds. Part 16. Preparation of 8-Fluoro-t-butylmetacyclophanes and their Treatment with Aluminium Chloride-Nitromethane in Benzene

The preparation of 8-fluoro-t-butylmetacyclophanes (5) are described.Dithiametacyclophane (3) and metacyclophane bis(sulphones) (4) were obtained as a mixture of transoid and cisoid conformers, but metacyclophanes (5) were exclusively obtained as the transoid conformer after pyrolysis of the sulphones (4).AlCl3-MeNO2-Catalyzed trans-t-butylation of 8-fluoro-16-methyl-5,13-di-t-butylmetacyclophane (5a) in benzene under a variety of conditions faild to give 8-fluoro-16-methylmetacyclophane (32) but, instead, the tetrahydropyrenes (33) and/or (34) were obtained depending upon the conditions used.Internally substituted metacyclophanes were isomerized to the strainless metacyclophanes and these were then oxidized to the tetrahydropyrene (33).