28320-34-5

Basic information

• Product Name: 2-amino-7-bromo-9,9-dimethyl fluorene
• Synonyms: 2-amino-7-bromo-9,9-dimethyl fluorene
• CAS NO: 28320-34-5
• Molecular Formula: C₁₅H₁₄BrN
• Molecular Weight: 288.18236
• EINECS: -0
• Mol File: 28320-34-5.mol
• Article Data: 6

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 2-amino-7-bromo-9,9-dimethyl fluorene(CAS DataBase Reference)
• NIST Chemistry Reference: 2-amino-7-bromo-9,9-dimethyl fluorene(28320-34-5)
• EPA Substance Registry System: 2-amino-7-bromo-9,9-dimethyl fluorene(28320-34-5)

Safety Data

• Hazardous Substances Data: 28320-34-5(Hazardous Substances Data)

Usage

General Description

2-amino-7-bromo-9,9-dimethyl fluorene is a chemical compound with the molecular formula C15H14BrN. It is a brominated amine derivative of fluorene, which is a polycyclic aromatic hydrocarbon. 2-amino-7-bromo-9,9-dimethyl fluorene is used in various chemical and pharmaceutical applications, particularly in the synthesis of organic compounds and as a building block for more complex molecules. It is known for its fluorescent properties and is used in the development of advanced materials and dyes. The presence of the bromine atom in the compound gives it unique reactivity and makes it an important intermediate in organic synthesis processes. Additionally, it has potential applications in the field of medicinal chemistry and pharmaceutical research.

Upstream product

• 28320-33-4 2-bromo-7-nitro-9,9-dimethyl-9H-fluorene 
• 4569-45-3 9,9-dimethyl-9H-fluorene 
• 28320-31-2 2-bromo-9,9-dimethyl-9H-fluorene 
• 605644-46-0 9,9-dimethyl-2-nitro-9H-indole 
• 28320-32-3 2,7-dibromo-9,9-dimethyl-9H-fluorene 

Downstream Products

• 28320-65-2 (7-Dimethylamino-9,9-dimethyl-9H-fluoren-2-yl)-(4-dimethylamino-phenyl)-phenyl-methanol 
• 28320-64-1 {7-[Bis-(4-dimethylamino-phenyl)-methoxy-methyl]-9,9-dimethyl-9H-fluoren-2-yl}-dimethyl-amine 
• 1208005-71-3 7-bromo-N,N-diethyl-9,9-dimethyl-9H-fluoren-2-amine 

Relevant articles and documents

Toward two-photon absorbing dyes with unusually potentiated nonlinear fluorescence response

The combination of two two-photon-induced processes in a F?rster resonance energy transfer (FRET)-operated photochromic fluorene-dithienylethene dyad lays the foundation for the observation of a quartic dependence of the fluorescence signal on the excitat

Design, synthesis and properties of near-infrared molecular switches containing a fluorene ring

Three molecular switches containing a fluorene ring were designed and synthesized. The introduction of the amino group substituted fluorene ring resulted in the target molecular switches having some optical properties in the near-infrared region. It was demonstrated that the N-substituents on the fluorene rings and the switch units both had great influence on the molecular switch optical properties including the absorption maximum, absorption intensity and fluorescence quantum yield. The open-ring forms IA and IIA showed obvious solvatochromic behaviour. The closed-ring forms IIB and IIIB showed obvious hydrochromic behaviour in MeCN/water binary solvent systems and acidichromic behaviour in MeCN solution with high reversibility. Especially, the distinct off-on fluorescence signal in the near-infrared region using the stimuli of acid means that the designed compounds have great potential application value in the field of biological sensing.

Design of donor-acceptor geometry for tuning excited-state polarization: Fluorescence solvatochromism of push-pull biphenyls with various torsional restrictions on their aryl-aryl bonds

In this work, push-pull biphenyl analogs (4-(N,N-dimethylamino)-4′-formylbiphenyl) with a modulated dihedral angle of the aryl-aryl bond, using a bridged structure or methyl groups, were synthesized. Photophysical measurements of the synthesized compounds revealed the effect of the torsion between N,N-dimethylaniline (donor) and benzaldehyde moieties (acceptor) on their solvatochromic properties. Our data showed that the sensitivity of the fluorescence maxima to solvent polarity gradually increases as the biphenyl chromophore was restricted to a twisted conformation. This finding indicates that changing the torsional restrictions on the donor-acceptor system can be a factor to take into account for the development of novel solvatochromic dyes.