171408-85-8

Basic information

• Product Name: 9H-Fluoren-9-ol, 9-[1,1'-biphenyl]-2-yl-2,7-dibromo-
• CAS NO: 171408-85-8
• Molecular Formula: C25H16Br2O
• Molecular Weight: 492.209
• Mol File: 171408-85-8.mol
• Article Data: 13

Chemical Properties

• CAS DataBase Reference: 9H-Fluoren-9-ol, 9-[1,1'-biphenyl]-2-yl-2,7-dibromo-(CAS DataBase Reference)
• NIST Chemistry Reference: 9H-Fluoren-9-ol, 9-[1,1'-biphenyl]-2-yl-2,7-dibromo-(171408-85-8)
• EPA Substance Registry System: 9H-Fluoren-9-ol, 9-[1,1'-biphenyl]-2-yl-2,7-dibromo-(171408-85-8)

Safety Data

• Hazardous Substances Data: 171408-85-8(Hazardous Substances Data)

Upstream product

• 321-60-8 2-fluorobiphenyl 
• 14348-75-5 2,7-dibromofluorene-9-one 
• 486-25-9 9-fluorenone 
• 90-41-5 2-phenylaniline 
• 2113-51-1 2-iodobiphenyl 
• 16433-88-8 2,7-dibromo-9H-fluorene 
• 86-00-0 2-nitrobiphenyl 
• 86-73-7 9H-fluorene 
• 82214-69-5 2-biphenylmagnesium bromide 
• 2052-07-5 2-Bromobiphenyl 

Downstream Products

• 1259313-86-4 spiro(2,7-bis[4-methoxyphenyl]fluorene-9,9'-fluorene) 
• 781645-23-6 spiro(2,7-bis[4-hydroxyphenyl]fluorene-9,9'-fluorene) 
• 1361305-36-3 2'-bromo-7'-phenyl-9,9'-spirobi[fluorene] 
• 1158844-46-2 C₇₇H₄₈ 
• 1158844-75-7 C₄₉H₄₆B₂O₄ 
• 1158844-74-6 2,7-bis-(4-bromophen-1-yl)-9,9’-spirobifluorene 
• 1158844-73-5 C₇₁H₄₄ 
• 1158844-72-4 C₄₃H₄₂B₂O₄ 
• 1158844-71-3 C₃₁H₁₈Br₂ 
• 475579-79-4 2,7-dibromo-9,9-bis(biphenyl)fluorene 
• 728911-52-2 2,7-bis (4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9′-spirobi[9H-fluorene] 
• 171408-84-7 2,7-dibromo-9,9'-spirobi[fluorene] 

Relevant articles and documents

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.

Method for synthesizing 9,9'-spirobifluorene derivative

The invention relates to a method for synthesizing a 9,9'-spirobifluorene derivative, and belongs to the field of organic chemical synthesis. The method comprises the following steps: activating a C-Fbond in tetrahydrofuran under inert gas protection through reduction and lithiation reaction of raw materials of 2-fluorobiphenyl and a metal lithium sheet, thus establishing 2-biphenyl lithium; thenenabling the 2-biphenyl lithium to react with a fluorenone derivative, hydrolyzing, drying a solvent by distillation, and carrying out ring closing on solid in acetic acid, thus synthesizing the 9,9'-spirobifluorene derivative. According to the method disclosed by the invention, the 2-fluorobiphenyl in low cost is adopted as a raw material to replace 2-bromobiphenyl commonly adopted by a traditional method, the production cost is low, and reaction conditions are gentle; an applicable substrate range of the method is wide, and a new thought is provided for synthesis of the 9,9'-spirobifluorenederivative.

Novel spyrobifluorene type organic compounds and an organic electroluminescent device comprising the same

The present invention provides a novel compound represented by the following Chemical Formula 1 and an organic electroluminescent device comprising the same.COPYRIGHT KIPO 2015