4709-67-5

Basic information

• Product Name: 9-hydroxy-9-benzhydrylfluorene
• Synonyms: 9-hydroxy-9-benzhydrylfluorene
• CAS NO: 4709-67-5
• Molecular Weight: 348.444
• Mol File: 4709-67-5.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 9-hydroxy-9-benzhydrylfluorene(CAS DataBase Reference)
• NIST Chemistry Reference: 9-hydroxy-9-benzhydrylfluorene(4709-67-5)
• EPA Substance Registry System: 9-hydroxy-9-benzhydrylfluorene(4709-67-5)

Safety Data

• Hazardous Substances Data: 4709-67-5(Hazardous Substances Data)

Upstream product

• 486-25-9 9-fluorenone 
• 101-81-5 Diphenylmethane 
• 117-34-0 2,2-diphenylacetic acid 
• 1016-09-7 benzhydryl methyl ether 
• 5152-68-1 benzhydryl sodium 

Downstream Products

• 4709-68-6 9-benzhydrylidenefluorene 

Relevant articles and documents

Radical-radical cross coupling reactions of photo-excited fluorenones

Radical-radical cross coupling reactions of photoexcited 9-fluorenones have been accomplished for the first time, leading to the synthesis of 9-alkyl, pyrollidinyl and spiro-THF derivatives of 9-fluorenones. The method also reveals, for the first time, th

Studies of 9-fluorenyl carbocations. Intramolecular hydride migration in a substituted 9-fluorenyl carbocation

The substituted fluorenyl cation, 9-(diphenylmethyl)fluoren-9-yl cation (4), is formed under stable ion conditions (low temperature/strong acid) from its corresponding alcohol 3. This ion is transformed to a substituted diphenyl methyl cation 8 at ambient temperature via an apparent 1,2-hydrogen shift. Irradiation of 9-(diphenylmethyl)fluoren-9-ol in methanol gives products derived from the corresponding cation along with radical-derived products from C-C and C-O homolysis processes. The laser flash photolysis of this alcohol gave a transient corresponding to cation 4. All of the photoproducts are derived from cation 4 or radical pathways. High level MO calculations point to a high barrier (23.8 kcal mol-1) for the 1,2-hydride shift. This barrier is the consequence of the minimum energy conformation of this fluorenyl cation which is less than ideal for the periplanar geometry necessary for this process.