39194-34-8

Basic information

• Product Name: 9H-Fluorene, 9-methoxy-9-methyl-
• CAS NO: 39194-34-8
• Molecular Formula: C15H14O
• Molecular Weight: 210.276
• Mol File: 39194-34-8.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 9H-Fluorene, 9-methoxy-9-methyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 9H-Fluorene, 9-methoxy-9-methyl-(39194-34-8)
• EPA Substance Registry System: 9H-Fluorene, 9-methoxy-9-methyl-(39194-34-8)

Safety Data

• Hazardous Substances Data: 39194-34-8(Hazardous Substances Data)

Upstream product

• 67-56-1 methanol 
• 6311-22-4 9-methyl-9H-fluoren-9-ol 
• 159433-40-6 9-methyl-9-(tricyanomethyl)fluorene 

Downstream Products

• 2523-37-7 9-methylfluorene 

Relevant articles and documents

Direct observation of a doubly destabilized cation

The 9-fluorenyl cation is a member of the 4N Hueckel antiaromatic series of intermediates, first observed by time-resolved spectroscopy on UV photo-excitation of 9-fluorenol.[1] 9-Trifluoromethyl-9-fluorenol incorporating an electron-withdrawing substituent was subjected to preparative and laser flash photolysis. Photoproduct studies in methanol indicated products derived from the corresponding fluorenyl cation and radical intermediates. Time-resolved spectroscopy in hexafluoroisopropanol (HFIP) showed a transient which was assigned to the corresponding cation as evident from methanol quenching. The lifetimes and methanol quenching rates of this transient was compared with that of 9- methylfluorenyl cation. The kinetic stabilities of these ions were compared to thermodynamic parameters obtained from theoretical calculations. ARKAT-USA, Inc.

Contrasting Photosolvolytic Reactivities of 9-Fluorenol vs 5-Suberenol Derivatives. Enhanced Rate of Formation of Cyclically Conjugated Four ? Carbocations in the Excited State

The photosolvolysis of 9-fluorenol (1) and several of its derivatives, as well as related systems, has been studied in aqueous methanol and acetonitrile solutions.The primary aim of this study was to examine the effect of the internal cyclic array (ICA) of these compounds in promoting photosolvolysis with respect to the number of ? electrons available in the ICA.It was observed that 9-fluorenol derivatives photosolvolyze much more efficiently than any of the related systems studied in this work.In contrast, ground-state 9-fluorenol derivatives are the least reactive systems with respect to solvolysis.Quantum yields for methyl ether formation for photosolvolysis in 50percent MeOH-H2O are reported for 1-3.Rate constants for solvent-assisted photodehydroxylation (ks) are calculated on the basis of the proposed mechanism of heterolytic C-OH bond rupture in the primary photochemical step and are in the range (1.3-1.6)x1E10 s-1 for 1-3.