155386-57-5

Basic information

• Product Name: 7-TERT-BUTYL-1-METHYLPYRENE
• Synonyms: 7-TERT-BUTYL-1-METHYLPYRENE;7-TERT-BUTYL-1-METHYLPYRENE ---WHITE POWDER---
• CAS NO: 155386-57-5
• Molecular Formula: C21H20
• Molecular Weight: 272.38
• Mol File: 155386-57-5.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 423 °C at 760 mmHg
• Flash Point: 204.5 °C
• Appearance: /
• Density: 1.112 g/cm³
• Vapor Pressure: 5.7E-07mmHg at 25°C
• Refractive Index: 1.709
• CAS DataBase Reference: 7-TERT-BUTYL-1-METHYLPYRENE(CAS DataBase Reference)
• NIST Chemistry Reference: 7-TERT-BUTYL-1-METHYLPYRENE(155386-57-5)
• EPA Substance Registry System: 7-TERT-BUTYL-1-METHYLPYRENE(155386-57-5)

Safety Data

• Hazardous Substances Data: 155386-57-5(Hazardous Substances Data)

Usage

InChI:InChI=1/C21H20/c1-13-5-6-14-7-8-15-11-17(21(2,3)4)12-16-9-10-18(13)20(14)19(15)16/h5-12H,1-4H3

Upstream product

• 76465-53-7 1-pyrenecarboxaldehyde hydrazone 
• 3029-19-4 pyrene-1-aldehyde 
• 129-00-0 pyrene 
• 507-20-0 tertiary butyl chloride 
• 2381-21-7 1-methylpyrene 

Downstream Products

• 64401-21-4 1,3-dimethylpyrene 

Relevant articles and documents

Electrophilic substitution of 7-tert-butyl-1-substituted pyrenes. A new route for the preparation of 1,3-disubstituted pyrenes

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Medium-Sized Cyclophanes. Part 31. Synthesis and Electrophilic Substitution of 8-Substituted Metacyclo(1,3)pyrenophanes

syn- and anti-2,11-Dithiametacyclo(1,3)pyrenophanes 15 have been obtained by coupling the corresponding 1,3-bis(bromomethyl)pyrene 11 and 1,3-bis(mercaptomethyl)benzenes 14 in ethanol under high-dilution conditions.Oxidation of the obtained thiametacyclophanes 15 with m-chloroperbenzoic acid afforded the corresponding syn- and anti-disulfones 18.Pyrolysis of the syn- and anti-disulfones 18 afforded exclusively the corresponding anti-metacyclo(1,3)pyrenophane 19 in 40-70percent yield along with the ring-cleavage product, 7-tert-butyl-1,3-dimethylpyrene 8.The nitration of 5,15-di-tert-butyl-8-methyl- 19b and 5,15-di-tert-butyl-8-methoxy-metacyclo(1,3)pyrenophane 19d with 1 mol equiv. of copper(II) nitrate in acetic anhydride solution exclusively occured on the more reactive pyrene ring to afford 14-nitro derivatives 21a and 21b in 83 and 86percent yield, respectively.On the other hand, the bromination of substrates 19 with bromide in methylene dichloride solution afforded 13-bromo derivatives 23 along with the transannular cyclization products 24 and 25.These different orientations for the electrophilic substitution are also discussed.