171856-26-1

Basic information

• Product Name: 5-(biphenyl-2-yl)-5H-cyclopenta[1,2-b:5,4-b']dipyridine-5-ol
• Synonyms: 5-(biphenyl-2-yl)-5H-cyclopenta[1,2-b:5,4-b']dipyridine-5-ol
• CAS NO: 171856-26-1
• Molecular Weight: 336.393
• Mol File: 171856-26-1.mol

Chemical Properties

• CAS DataBase Reference: 5-(biphenyl-2-yl)-5H-cyclopenta[1,2-b:5,4-b']dipyridine-5-ol(CAS DataBase Reference)
• NIST Chemistry Reference: 5-(biphenyl-2-yl)-5H-cyclopenta[1,2-b:5,4-b']dipyridine-5-ol(171856-26-1)
• EPA Substance Registry System: 5-(biphenyl-2-yl)-5H-cyclopenta[1,2-b:5,4-b']dipyridine-5-ol(171856-26-1)

Safety Data

• Hazardous Substances Data: 171856-26-1(Hazardous Substances Data)

Upstream product

• 50890-67-0 4,5-Diazafluoren-9-one 
• 2052-07-5 2-Bromobiphenyl 
• 23533-35-9 biphenyl-2-ylmagnesium iodide 
• 2113-51-1 2-iodobiphenyl 

Downstream Products

• 171856-25-0 4,5-diaza-9, 9′-spirobifluorene 
• 198142-63-1 2’,7’-dibromo-4,5-diaza-9,9’-spirobifluorene 

Relevant articles and documents

4,5-Diazafluorene-incorporated ter(9,9-diarylfluorene): A novel molecular doping strategy for improving the electron injection property of a highly efficient OLED blue emitter

(Chemical Equation Presented) A more efficient OLED device with blue emission characteristic of terfluorene has been achieved by using a novel molecular doping strategy, in which 4,5-diazafluorene was incorporated as the substitution group of terfluorene

New compound V and preparation method and application thereof

The invention discloses a new compound V and a preparation method thereof. The preparation method comprises the following steps: taking 1,10-phenanthroline as an initial raw material, and performing oxidation reaction, Grignard reaction and dehydration cy

Novel compound VI, preparation method and application

The invention discloses a novel compound VI and a preparation method thereof. A target product 2'-[4-(4-bromophenyl)quinolone-2-yl]spiro[cyclopentadiene[1,2-b:5,4-b']bipyridine-5,9'-fluorene] is synthesized by taking phenanthroline as a staring raw materi

Novel compound II, preparation method and application

The invention discloses a novel compound II, a preparation method and an application. Phenanthroline is taken as an initial material and subjected to an oxidation reaction, a Grignard reaction and a Friedel-Crafts acylation reaction, acetyl aza-spirobiflu

Novel compound, preparation method and application

The invention discloses a novel compound I, a preparation method and an application. Phenanthroline is taken as an initial material and subjected to an oxidation reaction, a Grignard reaction and a Friedel-Crafts acylation reaction, acetyl aza-spirobifluo

Novel compound III, preparation method and application

The invention discloses a novel compound III, a preparation method and application. A target product 2'-(1,10-phenanthrenemorpholine-2-yl)spiro[cyclopentadiene[1,2-b:5,4-b']bipyridine-5,9'-fluorene] is synthesized by taking phenanthroline as a staring raw

Synthesis of 9,9′-Spirobifluorenes and 4,5-Diaza-9,9′-spirobifluorenes and Their Application as Affinity Materials for Quartz Crystal Microbalances

Two different classes of aza analogues of 9,9′-spirobifluorenes have been synthesized. These were obtained by either furnishing the spirobifluorene with additional pyridyl moieties or by installing the aza function directly into the spirobifluorene core. These structurally rigid compounds were then evaluated as affinity materials for quartz crystal microbalances and proved to be highly potent for the detection of volatile organic compounds.

High-performance OLEDs based on 4,5-diaza-9,9′-spirobifluorene ligated rhenium(I) complex with enhanced steric hindrance

Highly efficient and emitter concentration insensitive phosphorescent electroluminescent devices based on a novel rhenium(I) [Re(I)] complex, i.e., (4,5-diaza-9,9′-spirobifluorene)Re(CO)3Br (Re-DSBF), were established. Non-doped device based on

Dipyridine-based compound and the use thereof

The present invention discloses a dipyridine-based compound which can be used as electron-transporting and/or hole blocking material or phosphorous host in organic electroluminescence devices is disclosed. The mentioned dipyridine-based compound is represented by the following formula: wherein R1 and R2 are identical or different, and R1 and R2 are independently selected from the group consisting of: hydrogen atom, aryl moiety, hetero cycle, multiple fused ring, multiple fused ring with hetero atom(s); A is selected from the following group: wherein R3 and R4 are identical or different, R5 and R6 are identical or different, R7 and R8 are identical or different, R3, R4, R7, R8 are independently selected from the group consisting of: alkyl moiety and aryl moiety, and R5, R6 are independently selected from the group consisting of: alkyl moiety, aryl moiety and arylamine moiety.

Pi-conjugated compound having cardo structure, process for preparing same and use of same

A π-conjugated compound having a cardo structure of formula (1): where R1 and R2 are hydrogen, alkyl, alkoxy, phenyl, naphthyl, phenoxy or halogen; Ar1 is a group of formula (2) or (3): where R3 thru R6 are hydrogen, alkyl, alkoxy, aryl, hetero-aryl, aryloxy or a halogen, and l and m are 0-3, and n is 0-2; and Ar2 is aryl or hetero aryl. The π-conjugated compound has good stability and is used as light emitting material.