1229-71-6

Upstream product

• 124111-83-7 As-(9-fluorenyl)triphenylarsonium bromide 
• 13379-29-8 2-bromo-2'-(bromomethyl)-1,1'-biphenyl 
• 19350-69-7 4-chlorobenzaldehyde p-toluenesulfonylhydrazone 
• 2113-51-1 2-iodobiphenyl 
• 66482-29-9 1-(2-bromovinyl)-4-chlorobenzene 
• 7385-10-6 9-(trimethylsilyl)fluorene 
• 104-88-1 4-chlorobenzaldehyde 
• 102023-75-6 (4-chlorophenyl)(9H-fluoren-9-yl)methanol 
• 256926-96-2 9-(naphthalen-1-ylmethylene)-9H-fluorene 
• 2871-87-6 p-methoxybenzylidene fluorene 
• 6939-97-5 9-(4-bromobenzylidene)-9H-fluorene 
• 2871-85-4 9-(4-methylbenzylidene)-9H-fluorene 
• 1836-87-9 9-Benzylidene-9H-fluorene 
• 746-47-4 tetrabenzo[5.5]fulvalene 

Downstream Products

• 1095033-34-3 C₂₆H₁₉ClO₂ 
• 1095033-36-5 C₂₈H₂₃ClO₂ 
• 1095033-48-9 C₂₅H₁₉ClO₂ 
• 746-47-4 tetrabenzo[5.5]fulvalene 
• 486-25-9 9-fluorenone 
• 104-88-1 4-chlorobenzaldehyde 
• 1836-87-9 9-Benzylidene-9H-fluorene 
• 2871-85-4 9-(4-methylbenzylidene)-9H-fluorene 
• 6939-97-5 9-(4-bromobenzylidene)-9H-fluorene 
• 2871-87-6 p-methoxybenzylidene fluorene 
• 1332618-03-7 C₂₁H₁₇ClO₂ 
• 1332618-02-6 C₂₂H₁₉ClO₂ 
• 1332618-07-1 C₂₁H₁₆ClNO₄ 
• 96975-40-5 2-(4-Chlor-phenyl)-1,1,3,3-bis-biphenylen-propen-⁽¹⁾ 

Relevant academic research and scientific papers

Potassium fluoride supported on alumina induced aldol condensation of fluorene

In the presence of potassium fluoride supported on alumina as a solid base, fluorene condensated smoothly with aromatic aldehydes in DMF at 150°C to give dibenzofulvenes in fair yield (44-90%).

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.

An N-heterocyclic carbene-catalyzed switchable reaction of 9-(trimethylsilyl)fluorene and aldehydes: Chemoselective synthesis of dibenzofulvenes and fluorenyl alcohols

An N-heterocyclic carbene-catalyzed synthesis of dibenzofulvenes and fluorenyl alcohols was developed. In the presence of 10 mol% NHC (1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) and 4 ? molecular sieves, 9-(trimethylsilyl)fluorene undergoes an olef

Intermolecular oxidative Friedel-Crafts reaction triggered ring expansion affording 9,10-diarylphenanthrenes

A novel intermolecular tandem oxidative aromatic coupling between arylidene fluorenes and unfunctionalized aromatics mediated by a DDQ/TFA oxidation system has been developed for the construction of 9,10-diary-lphenanthrenes (DAPs). The formation of a benzylic carbocation species possessing a quaternary sp3-carbon center on the fluorene moiety by an intermolecular oxidative Friedel-Crafts reaction of two different arenes successfully triggered the subsequent ring expansion to afford DAPs.

Iron(III) nitrate-induced aerobic and catalytic oxidative cleavage of olefins

Microwave-assisted catalytic oxidative cleavage of olefins using Fe(NO3)3·9H2O under O2 is reported. This reaction system is particularly effective when 9-benzylidene-9H-fluorene derivatives are used as substrates even though they are tri- and tetra-substituted olefins.

Pd-Catalyzed Autotandem Reactions with N-Tosylhydrazones. Synthesis of Condensed Carbo- and Heterocycles by Formation of a C-C Single Bond and a C-C Double Bond on the Same Carbon Atom

A new Pd-catalyzed autotandem reaction is introduced that consists of the cross-coupling of a benzyl bromide with a N-tosylhydrazone followed by an intramolecular Heck reaction with an aryl bromide. During the process, a single and a double C-C bond are formed on the same carbon atom. Two different arrangements for the reactive functional groups are possible, rendering great flexibility to the transformation. The same strategy led to 9-methylene-9H-fluorenes, 9-methylene-9H-xanthenes, 9-methylene-9,10-dihydroacridines, and also dihydropyrroloisoquinoline and dihydroindoloisoquinoline derivatives.

New synthesis of dibenzofulvenes by palladium-catalyzed double cross-coupling reactions

Palladium-catalyzed double cross-coupling reactions of 1,1-bis(pinacolato) borylalk-1-enes with 2,2′-dibromobiaryls and of 9-stannafluorenes with 1,1-dibromoalk-1-enes have been demonstrated to serve as new synthetic methods for dibenzofulvenes.

A comparative study in oxidative free radical reactions between 9-benzylidene-9-h fluorene derivatives and β-dicarbony1 compounds in the presence of mn(oac) 3 and can

The reactions of some 1,3-dicarbonyl compounds with 9-benzylidene-9-H- fluorene derivatives in the presence of manganese(III)acetate and ceric ammonium nitrate (CAN) were searched. 9-benzylidene-9-H-fluorene compounds form mainly [2+3] dipolar cycloadditi

Facile synthesis of 1,2-diaryl- and triarylethenes with supported fluoride bases

Differently substituted arenecarbaldehydes, mainly benzaldehydes, can be very efficiently condensed with a wide variety of methylbenzenes having an electron-withdrawing group in the para-position, as well as with fluorenes, xanthene, cyclopentadienes and indenes by using a standardized KF- or CsF-Al2O3 base system in dimethylformamide.