67665-44-5

Basic information

• Product Name: 9-(biphenyl-2-yl)-9H-fluoren-9-ol
• CAS NO: 67665-44-5
• Molecular Formula: C₂₅H₁₈O
• Molecular Weight: 334.4098
• Mol File: 67665-44-5.mol
• Article Data: 17

Chemical Properties

• Boiling Point: 543.7°C at 760 mmHg
• Flash Point: 210.9°C
• Density: 1.223g/cm³
• Vapor Pressure: 1.18E-12mmHg at 25°C
• Refractive Index: 1.689
• CAS DataBase Reference: 9-(biphenyl-2-yl)-9H-fluoren-9-ol(CAS DataBase Reference)
• NIST Chemistry Reference: 9-(biphenyl-2-yl)-9H-fluoren-9-ol(67665-44-5)
• EPA Substance Registry System: 9-(biphenyl-2-yl)-9H-fluoren-9-ol(67665-44-5)

Safety Data

• Hazardous Substances Data: 67665-44-5(Hazardous Substances Data)

Upstream product

• 486-25-9 9-fluorenone 
• 23533-35-9 biphenyl-2-ylmagnesium iodide 
• 90-41-5 2-phenylaniline 
• 321-60-8 2-fluorobiphenyl 
• 82214-69-5 2-biphenylmagnesium bromide 
• 2113-51-1 2-iodobiphenyl 
• 2052-07-5 2-Bromobiphenyl 

Downstream Products

• 118951-68-1 9,9'-spirobi(9H-fluorene)-2-amine 
• 22824-83-5 1,1'-(9,9'-spirobi[fluorene]-2,7′-diyl)diethanone 
• 1231916-66-7 2-(spirobifluoren-2-yl)-9-(2-biphenyl)-3,4-diazafluoren-9-ol 
• 128055-75-4 2,2',7,7'-tetrakis(4''-(trimethylsilyl)phenyl)-9,9'-spirobifluorene 
• 128055-74-3 2,2',7,7'-tetrabromo-9,9'-spirobifluorene 
• 67665-47-8 2,2′-dibromo-9,9′-spirobi[9H-fluorene] 
• 88180-19-2 9-(2-Biphenylyl)fluorene 

Relevant articles and documents

Synthesis, characterization, and optical properties of 2-amino-4-aryl-6-(9, 9′-spirobifluoren-2-yl)pyrimidines

A series of 2-amino-4-aryl-6-(9,9′-spirobifluoren-2-yl)pyrimidines have been synthesized by the reaction of guanidine and chalcones under basic conditions. The physical and optical properties indicated that these compounds generally show good blue light e

Synthesis of Conjugated Copolymer Containing Spirobifluorene Skeleton by Acyclic Diene Metathesis Polymerization for Polymer Light-Emitting Diode Applications

Grubbs-type, Hoveyda-type, cyclic alkyl amino carbene (CAAC)-based ruthenium olefin metathesis catalysts were used for the acyclic diene metathesis (ADMET) polymerization of 2,7-divinyl-9,9-di-n-octylfluorene (DVF). Additionally, various ratios of DVF and 2,2′,7,7′-tetravinyl-9,9′-spirobifluorene (TVSF) were subjected to ADMET polymerization to obtain polymers P1–P7. Polymers P1–P4 were analyzed with gel permeation chromatography, UV–vis spectroscopy, and photoluminescence spectroscopy. As the TVSF ratio increases, polymers exhibit lower solubility but a narrower band in the photoluminescence spectrum. Polymer light-emitting diode (PLED) devices were fabricated with polymers P1, P2, and P3. The performances of the PLED devices indicated that polymers including more spirobifluorene blocks showed better turn-on voltage, brightness, current efficiency, and power efficiency.

9, 9' - Spirobifluorene preparation of

PROBLEM TO BE SOLVED: To provide a method for industrially advantageously manufacturing 9,9'-spirobifluorenes.SOLUTION: By performing a reaction in the presence of a non-aqueous solvent when an intermediate (9-(2-biphenyl)-9-fluorene alcohols) is ring-closed, 9,9'-spirobifluorenes are obtained even when a large amount of acid is not used as a solvent. In the manufacture of the intermediate, the 9,9'-spirobifluorenes can be more easily manufactured by extracting the intermediate 9-(2-biphenyl)-9-fluorene alcohols obtained by a Grignard reaction between 2-halo biphenyl and 9-fluorenones from a reaction mixture by a water-insoluble solvent instead of a method of isolating the intermediate by a crystallization filtration being a conventional method.