7143-79-5

Basic information

• Product Name: 9-benzyl-N,N-dimethyl-9H-fluoren-9-amine
• CAS NO: 7143-79-5
• Molecular Formula: C₂₂H₂₁N
• Molecular Weight: 299.4088
• Mol File: 7143-79-5.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 443°C at 760 mmHg
• Flash Point: 195.9°C
• Density: 1.13g/cm³
• Vapor Pressure: 4.79E-08mmHg at 25°C
• Refractive Index: 1.656
• CAS DataBase Reference: 9-benzyl-N,N-dimethyl-9H-fluoren-9-amine(CAS DataBase Reference)
• NIST Chemistry Reference: 9-benzyl-N,N-dimethyl-9H-fluoren-9-amine(7143-79-5)
• EPA Substance Registry System: 9-benzyl-N,N-dimethyl-9H-fluoren-9-amine(7143-79-5)

Safety Data

• Hazardous Substances Data: 7143-79-5(Hazardous Substances Data)

Upstream product

• 6318-93-0 benzyl-fluoren-9-yl-dimethyl-ammonium; bromide 
• 100-44-7 benzyl chloride 
• 83936-70-3 9-(dimethylamino)fluorenide anion 
• 591-51-5 phenyllithium 
• 124-41-4 sodium methylate 
• 103-83-3 N,N'-dimethylbenzylamine 
• 832-80-4 9-diazofluorenone 

Downstream Products

• 71740-49-3 (9-benzyl-fluoren-9-yl)-trimethyl-ammonium; bromide 

Relevant articles and documents

Steric and Electrochemical Effects on Rates of Electron Transfer and SN2 Reactions of 9-(Dialkylamino)fluorenide Ions with Alkyl Halides

Rate ratios for reactions of PhCH2Cl vs Ph2CHCl with seven 9-(dialkylamino)fluorenide (9-R2NFl(1-)) ions were measured in Me2SO solution.Although the reaction sites in these ions are known to be highly congested and Ph2CHCl is more sterically hindered than is PhCH2Cl, the kPhCH2Cl/kPh2CHCl rate ratios for reactions with 9-R2NFl(1-) ions in Me2SO were all much lower (0.20-4.9) than for the less hindered 9-MeFl(1-) or p-MeOC6H4O- ions (81 and 138, respectively).This suggested that the Ph2CHCl reactions with 9-R2NFl(1-) ions were occuring by single electron transfer(SET) mechanisms, despite the formation of high yields of SN2-type products.This conclusion was supported by the observation of a close correspondence between SET rates (log kSET), calculated by using the Marcus equation, and log kobsd for reactions of 2-R2NFl(1-) ions with both a known single electron acceptor, F3CCH2I, and with Ph2CHCl and (p-ClC6H4)2CHCl.Similar log kSET vs log kobsd comparisons for reactions of the 9-R2NFl(1-) ions with PhCH2Cl, c-C6H11Br, and n-BuBr revealed greater disparity.