22824-83-5

Basic information

• Product Name: (Ethanone, 1,1'-(9,9'-spirobi[9H-fluorene]-2,2'-diyl)bis-)
• Synonyms: (Ethanone, 1,1'-(9,9'-spirobi[9H-fluorene]-2,2'-diyl)bis-);1,1'-(9,9'-spirobi[fluorene]-2,2'-diyl)diethanone
• CAS NO: 22824-83-5
• Molecular Formula: C₂₉H₂₀O₂
• Molecular Weight: 400.4679
• Mol File: 22824-83-5.mol
• Article Data: 17

Chemical Properties

• Appearance: /
• CAS DataBase Reference: (Ethanone, 1,1'-(9,9'-spirobi[9H-fluorene]-2,2'-diyl)bis-)(CAS DataBase Reference)
• NIST Chemistry Reference: (Ethanone, 1,1'-(9,9'-spirobi[9H-fluorene]-2,2'-diyl)bis-)(22824-83-5)
• EPA Substance Registry System: (Ethanone, 1,1'-(9,9'-spirobi[9H-fluorene]-2,2'-diyl)bis-)(22824-83-5)

Safety Data

• Hazardous Substances Data: 22824-83-5(Hazardous Substances Data)

Upstream product

• 159-66-0 9,9'-spirobifluorene 
• 75-36-5 acetyl chloride 
• 486-25-9 9-fluorenone 
• 2052-07-5 2-Bromobiphenyl 
• 67665-44-5 9-((1,1'-biphenyl)-2-yl)-9H-fluoren-9-ol 
• 90-41-5 2-phenylaniline 
• 2113-51-1 2-iodobiphenyl 

Downstream Products

• 1414942-33-8 2,2'-bis(4-nitro-2-trifluoromethylphenoxy)-9,9'-spirobifluorene 
• 1414942-34-9 2,2'-bis(4-amino-2-trifluoromethylphenoxy)-9,9'-spirobifluorene 

Relevant articles and documents

Efficient Rare-Earth-Based Coordination Polymers as Green Photocatalysts for the Synthesis of Imines at Room Temperature

Five new rare-earth coordination polymers (CPs) were designed in order to offer a remarkable platform that contains light-harvesting antennas and catalytic active centers to achieve solar-energy conversion as green alternatives in the synthesis of imines. These five new spirobifluorene-containing Ln-CPs, named [Er3(Hsfdc)3(sfdc)3(H2O)]·xH2O (RPF-30-Er), [Ln(Hsfdc)(sfdc)(EtOH)]·S (RPF-31-Ln, where Ln = La, Nd, and Sm and S = H2O or EtOH), and [Ho(Hsfdc)(sfdc)(H2O)] (RPF-32-Ho) (RPF = rare-earth polymeric framework and H2sfdc = 9,9′-spirobi[9H-fluorene]-2,2′-dicarboxylic acid), have been solvothermally synthesized, and their structural features can be described as follows: (i) RPF-30-Er shows a 3D framework in which the inorganic trimers (secondary building units) are cross-linked by Hsfdc- and sfdc2- linkers displaying a pcu topology. (ii) The isostructural RPF-31-Ln series of materials, together with RPF-32-Ho, exhibit a 1D network of chains growing along the a axis with a ribbon-of-rings topology type. The photocatalytic activity of the RPF-n materials was tested in the oxidative coupling of amines using molecular oxygen and air as oxidizing agents under warm light. Among the materials investigated, RPF-31-Nd was chosen to further investigate the approach in the selectivity of different amine derivates.

O-HYDROXY-FUNCTIONALIZED DIAMINES, POLYMIDES, METHODS OF MAKING EACH, AND METHODS OF USE

Embodiments of the present disclosure provide for an ortho (o)-hydroxy-functionalized diamine, a method of making an o-hydroxy-functionalized diamine, an o-hydroxy-functionalized diamine-based polyimide, a method of making an o-hydroxy-functionalized diamine imide, methods of gas separation, and the like.

Synthesis, Chiral Resolution, and Absolute Configuration of C 2-Symmetric, Chiral 9,9′-Spirobifluorenes

Racemic 2,2′-, 2,2′,7,7′-, and 2,2′,3,3′-substituted 9,9′-spirobifluorenes were synthesised and successfully resolved by HPLC on a Chiralpak IA stationary phase on both analytical and semipreparative scales. Their absolute configurations were determined by comparison of their specific optical rotations with literature data or by comparison of retention times with independently prepared enantiopure material. These compounds are versatile C 2-symmetric building blocks for the formation of more sophisticated cleft-like, chiral molecular architectures. Dissymmetric difunctionalised 9,9′-spirobifluorene derivatives were prepared and resolved by HPLC on a chiral stationary phase on a semipreparative scale. The absolute configurations of the resolved enantiomers were assigned by comparison of specific optical rotations with literature data or retention times of independently prepared enantiomerically pure material.