4709-68-6

Basic information

• Product Name: BENZHYDRYLIDENEFLUORENE
• Synonyms: BENZHYDRYLIDENEFLUORENE;Benzhydrylidenefluorene,98+%;9-(Diphenylmethylene)fluorene;9-Benzhydrylidene-9H-fluorene;9-Diphenylmethylene-9H-fluorene;9-[di(phenyl)methylidene]fluorene;8-phenylbenzo[e]acephenanthrylene
• CAS NO: 4709-68-6
• Molecular Formula: C₂₆H₁₈
• Molecular Weight: 330.42
• Mol File: 4709-68-6.mol
• Article Data: 22

Chemical Properties

• Melting Point: 230-232°C
• Boiling Point: 448.2°Cat760mmHg
• Flash Point: 222.2°C
• Appearance: /
• Density: 1.169g/cm³
• Vapor Pressure: 8.38E-08mmHg at 25°C
• Refractive Index: 1.685
• Storage Temp.: −20°C
• BRN: 1977991
• CAS DataBase Reference: BENZHYDRYLIDENEFLUORENE(CAS DataBase Reference)
• NIST Chemistry Reference: BENZHYDRYLIDENEFLUORENE(4709-68-6)
• EPA Substance Registry System: BENZHYDRYLIDENEFLUORENE(4709-68-6)

Safety Data

• Safety Statements: S22:Do not inhale dust.; S24/25:Avoid contact with skin and eyes.
• WGK Germany: 3
• Hazardous Substances Data: 4709-68-6(Hazardous Substances Data)

Usage

General Description

Benzhydrylidenefluorene is a chemical compound with the molecular formula C29H23. It belongs to the class of organic compounds known as fluorenes and is used in the synthesis of other organic compounds. It is a white to light yellow powder with a melting point of 320-330°C and is insoluble in water but soluble in organic solvents such as ethanol, acetone, and chloroform. Benzhydrylidenefluorene has applications in the field of organic chemistry and materials science, where it is used as a building block in the synthesis of various organic compounds and as a component in the production of polymers and materials with specific electronic properties. Its unique chemical structure and properties make it a valuable intermediate for the manufacturing of various products in different industries.

InChI:InChI=1/C26H18/c1-3-11-19(12-4-1)25(20-13-5-2-6-14-20)26-23-17-9-7-15-21(23)22-16-8-10-18-24(22)26/h1-18H

Upstream product

• 86-73-7 9H-fluorene 
• 101-81-5 Diphenylmethane 
• 2051-90-3 Dichlorodiphenylmethane 
• 87823-45-8 (9H-fluoren-9-yl)-diphenylmethanol 
• 119-61-9 benzophenone 
• 881-04-9 9H-fluoren-9-yllithium 
• 71-43-2 benzene 
• 486-25-9 9-fluorenone 
• 108-86-1 bromobenzene 
• 10271-65-5 2-(phenylethynyl)-1,1'-biphenyl 
• 2592-73-6 1,1-dibromo-2,2-diphenylethylene 
• 5565-85-5 5,5-dimethyl-5H-dibenzo[b,d]stannole 
• 1211318-60-3 2'-bromo-2-(phenylethynyl)biphenyl 
• 98-80-6 phenylboronic acid 

Downstream Products

• 486-25-9 9-fluorenone 
• 602-15-3 9,10-diphenylphenanthrene 
• 119-61-9 benzophenone 
• 165-09-3 dispiro[9H-fluorene-9,3'-(1,2,4,5-tetroxane)-6',9''-[9H]fluorene] 
• 3299-84-1 9-benzoyl-9-phenylfluorene 
• 4425-68-7 9-(diphenylmethyl)fluorene 

Relevant articles and documents

Reaction of stannenes and phosphastannenes with aldehydes and ketones: New tin four-membered ring derivatives

Stannene Tip2Sn=CR2 1 (Tip = 2,4,6-triisopropylphenyl, CR2 = fluorenylidene) enters a [2+2] cycloaddition reaction with benzophenone to afford the four-membered ring derivative 2. This stannaoxetane undergoes a [2+2] decom

Palladium-catalyzed coupling reaction of 2-iodobiphenyls with alkenyl bromides for the construction of 9-(diorganomethylidene)fluorenes

An atom economical protocol for the construction of 9-(diorganomethylidene)fluorenes through palladium-catalyzed coupling reactions of 2-iodobiphenyls with alkenyl bromides has been reported. The reaction proceeds through the C-H activation/oxidative addition/reduction elimination/intramolecular Heck coupling reaction to afford a series of 9-(diorganomethylidene)fluorenes with good yields. Control experiments demonstrate that a five-membered palladacycle acts as a key intermediate and β-H elimination serves as the rate-limiting step.

α-Bromoacrylic Acids as C1 Insertion Units for Palladium-Catalyzed Decarboxylative Synthesis of Diverse Dibenzofulvenes

Herein α-bromoacrylic acids have been employed as C1 insertion units to achieve the palladium-catalyzed [4 + 1] annulation of 2-iodobiphenyls, which provides an efficient platform for the construction of diverse dibenzofulvenes. This protocol enables the formation of double C(aryl)-C(vinyl) bonds via a C(vinyl)-Br bond cleavage and decarboxylation. It is particularly noteworthy that the method features a broad substrate scope, and various interesting frameworks, such as bridged ring, fused (hetero)aromatic ring, and divinylbenzene, can be successfully incorporated into the products.