6939-97-5

Upstream product

• 86-73-7 9H-fluorene 
• 1122-91-4 4-bromo-benzaldehyde 
• 486-25-9 9-fluorenone 
• 57080-46-3 p-Brombenzyltriphenylarsonium bromid 
• 1202639-20-0 C₃₃H₂₉BrN₄O₈ 
• 746-47-4 tetrabenzo[5.5]fulvalene 
• 1836-87-9 9-Benzylidene-9H-fluorene 
• 2871-85-4 9-(4-methylbenzylidene)-9H-fluorene 
• 1229-71-6 9-(4-chlorobenzylidene)-9H-fluorene 
• 2871-87-6 p-methoxybenzylidene fluorene 
• 256926-96-2 9-(naphthalen-1-ylmethylene)-9H-fluorene 
• 7385-10-6 9-(trimethylsilyl)fluorene 
• 2113-51-1 2-iodobiphenyl 
• 778641-02-4 1-bromo-4-(2-bromovinyl)benzene 

Downstream Products

• 16305-98-9 9-(4-bromobenzyl)-9H-fluorene 
• 94546-53-9 1,2-Dibrom-2-<4-brom-phenyl>-1,1-biphenylen-aethan 
• 746-47-4 tetrabenzo[5.5]fulvalene 
• 486-25-9 9-fluorenone 
• 1122-91-4 4-bromo-benzaldehyde 
• 1836-87-9 9-Benzylidene-9H-fluorene 
• 2871-85-4 9-(4-methylbenzylidene)-9H-fluorene 
• 1229-71-6 9-(4-chlorobenzylidene)-9H-fluorene 
• 2871-87-6 p-methoxybenzylidene fluorene 
• 96975-39-2 2-(4-Brom-phenyl)-1,1,3,3-bis-biphenylen-propen-⁽¹⁾ 
• 94544-74-8 1-(4-Brom-phenyl)-2,2-biphenylen-vinylbromid 
• 52844-02-7 2-(4-Brom-phenyl)-1,1,3,3-bis-biphenylen-allyl 
• 27973-41-7 4-((9H-fluoren-9-ylidene)methyl)benzonitrile 
• 19656-52-1 9-(α-Cyan-p-brom-benzyl>-fluoren 

Relevant academic research and scientific papers

Synthesis of 9-Fluorenylidenes via Pd-Catalyzed C-H Vinylation with Vinyl Bromides

A facile and efficient approach for the synthesis of 9-fluorenylidenes has been developed via the palladium-catalyzed cross-coupling of 2-iodobiphenyls and vinyl bromides. The reaction involves the C-H activation of 2-iodobiphenyls and dual C-C bond formations. A range of 9-fluorenylidene derivatives, including diphenyldibenzofulvenes, can be synthesized with the reaction.

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

Effects of incorporating regioisomers and flexible rotors to direct aggregation induced emission to achieve stimuli-responsive luminogens, security inks and chemical warfare agent sensors

Efficient transformation of ACQ materials to AIE luminogens using simple design principles of positional isomerization and C-C bond exclusion is presented here. Consequently, the bond link, position and packing influence the photophysical properties that can be utilized in erasable secret inks, pressure sensors and chemical warfare sensors.

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.

CONTROLLED DRUG RELEASE FROM SOLID SUPPORTS

The invention relates to solid supports useful in medical applications that provide controlled release of drugs, such as peptides, nucleic acids and small molecules. The drugs are covalently coupled to the solid support through a linkage that releases the drug or a prodrug through controlled beta elimination.

CONTROLLED RELEASE FROM MACROMOLECULAR CONJUGATES

The invention relates to conjugates of macromolecular carriers and drugs comprising linkers that release the drug or a prodrug through rate-controlled beta-elimination, and methods of making and using the conjugates.

METHYLENE-CARBONYL CONDENSATIONS OF SOME CH ACIDS WITH ALDEHYDES UNDER THE CONDITIONS OF PHASE-TRANSFER CATALYSIS OR CATALYSIS BY THE FLUORIDE ION

The condensation of a series of CH acids (fluorene, phenylacetonitrile, ethene) with aromatic aldehydes was realized in the aqueous sodium hydroxide-organic solvent-phase-transfer catayst system. 9-Substituted fluorenes do not enter into condensation under the indicated conditions.The condensation of fluorene, PhCH2CN, CH2(CN)2, and CH2(CN)COOEt with benzaldehyde and also of CH2(CN)COOEt with cyclohexanone was realized in the presence of tetrabutylammonium fluoride , deposited on silika gel.It was shown that the yield of the produt from crotonic condensation in the reaction of CH2(COOEt)2 with benzaldehyde is small, and this is due to the instability of PhCH=C(COOEt)2 under the reaction conditions.Sodiomalonic ester was condensed with benzaldehyde in the presence of titanium tetrachloride or aluminum chloride.

Effect of Bulky Size of Carbonyl Systems on Betaine Decomposition of Semi-stablized Arsonium Ylids

Reactions of substituted benzylidentriphenylarsenanes (2a-i) with 9-anthraldehyde and 9-fluorenone have been studied using benzene-sodamide, chloroform-sodium hydride and methanol-sodium ethoxide as solvent-base pairs.In all the cases olefins (5a-i and 6a-i) are formed exclusively.Variation of solvents and bases has no effect on the course of betaine decomposition formed by the nucleophilic attack of ylids on carbonyl systems.