17529-01-0

Basic information

• Product Name: Benzaldehyde, 9H-fluoren-9-ylidenehydrazone
• Synonyms: Fluorenon-benzol-hydrazon;Fluorenon-benzalhydrazon;benzylidene-fluoren-9-ylidene-hydrazine;Benzyliden-fluoren-9-yliden-hydrazin;Fluorenon-benzaldehyd-azin;N-Fluoren-9-ylidene-N'-[1-phenyl-meth-(E)-ylidene]-hydrazine
• CAS NO: 17529-01-0
• Molecular Formula: C20H14N2
• Molecular Weight: 282.345
• Mol File: 17529-01-0.mol

Chemical Properties

• CAS DataBase Reference: Benzaldehyde, 9H-fluoren-9-ylidenehydrazone(CAS DataBase Reference)
• NIST Chemistry Reference: Benzaldehyde, 9H-fluoren-9-ylidenehydrazone(17529-01-0)
• EPA Substance Registry System: Benzaldehyde, 9H-fluoren-9-ylidenehydrazone(17529-01-0)

Safety Data

• Hazardous Substances Data: 17529-01-0(Hazardous Substances Data)

Upstream product

• 100-52-7 benzaldehyde 
• 13629-22-6 fluoren-9-ylidene-hydrazine 
• 27081-10-3 tropylium tetrafluoroborate 
• 486-25-9 9-fluorenone 
• 65997-87-7 (E,Z)-Benzaldehyde azine 
• 63609-88-1 9-fluorenethione S-p-toluenesulfomimide 
• 38436-36-1 (2E)-3-phenyl-2-nitroprop-2-enenitrile 
• 832-80-4 9-diazofluorenone 

Downstream Products

• 4440-33-9 fluorenone imine 
• 100-47-0 benzonitrile 

Relevant articles and documents

A Fluorenyl Activating Group Enables Addition of Simple Grignard Reagents to C=N Electrophiles

Nucleophilic addition of organometallic reagents to ketimines and hydrazones can be a challenging transformation. Here we report the use of fluorenone-derived mixed azines which promote facile addition of Grignard reagents. The fluorenylidene activating g

Unexpected course of reaction between (E)-2-aryl-1-cyano-1-nitroethenes and diazafluorene: why is there no 1,3-dipolar cycloaddition?

Abstract: Reactions between (E)-2-aryl-1-cyano-1-nitroethenes and diazafluorene lead to acyclic 2,3-diazabuta-1,3-diene derivatives, instead of the expected pyrazoline systems. DFT calculations suggest that this is a consequence of formation of zwitterionic structure in the first stage of the reaction. It must be noted that this is a specific property of the (E)-2-aryl-1-cyano-1-nitroethenes group, in contrast to most other conjugated nitroalkenes. Graphical abstract: [Figure not available: see fulltext.]

Synthesis and Properties of 9-(Tropylidenehydrazono)fluorene and Related Compounds

9-(Tropylidenehydrazono)fluorene (1) was obtained by a reaction between 9-fluorenone hydrazone and tropylium tetrafluoroborate. ccompanied by 9-fluorenone azine, 9-(benzylidenehydrazono)fluorene, and 9,9-ditropylfluorene. The amination of 1 occurred at the 2-position of the tropylidene moiety. The addition of tosyl isocyanate to 1 gave the [8 +2] cycloadduct at the 2,4,6-cydoheptatrien-1-imine structure.

Thione S-Imides. The Reaction with Carbon-Hetero Atom Double Bond

9-Fluorenethione S-p-toluenesulfonimide reacted as a 1,3-dipole with imines, oximes, and thiones to form (3+2)cycloadducts, while with symmetrical azines and aldehydes, unsymmetrical azines, N-(p-tolylsulfonyl)imines and fluorenone were obtained as a result of the decomposition of the cycloadducts.