40102-85-0

Usage

Uses

Used in Advanced Materials and Research:
9H-Xanthen-9-one, 2,7-dibromois used as a reagent for the synthesis of various chemical compounds, contributing to the development of new materials and the advancement of scientific research. Its unique molecular structure with bromine atoms allows for the creation of novel compounds with potential applications in different industries.
Used in Chemical Synthesis:
9H-Xanthen-9-one, 2,7-dibromois employed as a key intermediate in the synthesis of complex organic molecules. Its presence in the molecular structure can influence the properties and reactivity of the final products, making it a valuable component in the creation of new chemical entities.
Used in Environmental and Health Safety Studies:
Due to its potential hazards, 9H-Xanthen-9-one, 2,7-dibromois also used in studies focused on environmental and health safety. Understanding its effects and how to mitigate them is crucial for the responsible handling and disposal of this chemical compound, as well as for the development of safer alternatives.

Upstream product

• 90-47-1 xanth-9-one 
• 89-55-4 5-bromosalicyclic acid 
• 7726-95-6 bromine 
• 56341-31-2 2-bromo-9H-xanthene-9-one 
• 7553-56-2 iodine 
• 64-19-7 acetic acid 
• 7732-18-5 water 
• 7664-41-7 ammonia 
• 609-65-4 o-chlorobenzoyl chloride 
• 69-72-7 salicylic acid 
• 50-78-2 aspirin 
• 108-95-2 phenol 
• 201230-82-2 carbon monoxide 
• 2050-47-7 4,4'-dibromodiphenyl ether 

Downstream Products

• 874518-90-8 2,7-dibromo-9-isopropoxy-xanthene 
• 148877-22-9 2,7-dibromo-4,5-dinitro-xanthen-9-one 
• 136345-30-7 2,7-dibromo-9-phenylxanthene-9-ol 
• 136345-31-8 2,7-Dibromo-9-<3-(trifluoromethyl)phenyl>xanthen-9-ol 
• 42946-32-7 2,7-Dicyanoxanthone 
• 40102-87-2 2,7-dibromo-9H-xanthene 
• 112120-86-2 2,7-Dicyanoxanthene 
• 112120-90-8 2,7-Diamidinoxanthene dihydrochloride 
• 112120-88-4 2,7-Diamidinoxanthone dihydrichloride 
• 1316277-21-0 3-[2'-hydroxy-4'-bromophenyl]-5-bromo-1,2-benzisoxazole 
• 1316277-22-1 3-[2'-hydroxy-4'-phenylphenyl]-5-phenyl-1,2-benzisoxazole 
• 1316277-33-4 3-[2'-hydroxy-4'-bromophenyl]-5-bromo-1,2-benzisoxazole 2-oxide 
• 1316277-34-5 3-[2'-hydroxy-4'-phenylphenyl]-5-phenyl-1,2-benzisoxazole 2-oxide 
• 82845-53-2 5,5'-dibromo-2,2'-dihydroxy-benzophenone 

Relevant academic research and scientific papers

Synthesis, photophysical, electrochemical and thermal investigation of Triarylamines based on 9H-Xanthen-9-one: Yellow-green fluorescent materials

Triarylamines containing 9 H-Xanthen -9-one core and aromatic units such as phenyl, naphthyl and p -methoxyphenyl were synthesized by employing palladium catalyzed C -N bond forming amination reaction in good yields. The photophysical studies revealed that the absorption and emission spectra are influenced by the nature of the peripheral amines. The photoemission spectra can be readily tuned in the range 483-532 nm (solution) and 525-576 nm (film) displaying green or yellow emission (film) depending on the nature of the amine segment with optical band gaps in the range 2.52-2.75 eV (film). The ionization potential and electron affinity were found to be in the range 5.332-5.686 eV and 2.705-2.776 eV, respectively. Thermal studies revealed that the synthesized compounds have good thermal stability with 5% and 10% weight loss at temperature ranging from 260-330°C and 340-370°C, respectively.

A Green Nanopalladium-Supported Catalyst for the Microwave-Assisted Direct Synthesis of Xanthones

We report an efficient, selective, rapid and eco-friendly protocol for the one-step synthesis of a small xanthone library via an intermolecular catalytic coupling from readily available salicylaldehydes and 1,2-dihaloarenes under ligand-free conditions. To achieve this advantageous direct annulation, we used a novel recoverable palladium nanocatalyst supported on a green biochar under microwave irradiation. Unlike other existing palladium-based approaches, our synthetic strategy showed a greater operational simplicity, drastic reduction in reaction times, and an excellent tolerance to diverse functional groups. The reaction proceeds in very good yields and with high regioselectivity. The novel heterogeneous catalyst can be recycled and reused up to four times without significant loss of activity.

Diastereo- And Atroposelective Synthesis of Bridged Biaryls Bearing an Eight-Membered Lactone through an Organocatalytic Cascade

We present herein an unprecedented stereoselective synthesis of bridged biaryls with defined axial and central chirality from readily available starting materials. This N-heterocyclic carbene-catalyzed method proceeds through propargylic substitution of azolium enolates followed by two-directional cyclization, as supported by DFT calculation. A range of benzofuran/indole-derived bridged biaryls bearing an eight-membered lactone are accessed with uniformly high stereoselectivity (>98:2 dr, mostly >98% ee).

Non-Planar and Flexible Hole-Transporting Materials from Bis-Xanthene and Bis-Thioxanthene Units for Perovskite Solar Cells

Two new hole-transporting materials (HTMs), BX-OMeTAD and BTX-OMeTAD, based on xanthene and thioxanthene units, respectively, and bearing p-methoxydiphenylamine peripheral groups, are presented for their use in perovskite solar cells (PSCs). The novelty of the newly designed molecules relies on the use of a single carbon-carbon bond ‘C?C’ as a linker between the two functionalized heterocycles, which increases the flexibility of the molecule compared with the more rigid structure of the widely used HTM spiro-OMeTAD. The new HTMs display a limited absorbance in the visible region, due to the lack of conjugation between the two molecular halves, and the chemical design used has a remarkably impact on the thermal properties when compared to spiro-OMeTAD. BX-OMeTAD and BTX-OMeTAD have been tested in ([(FAPbI3)0.87(MAPbBr3)0.13]0.92[CsPbI3]0.08)-based PSC devices exhibiting power conversion efficiencies of 14.19 and 16.55 %, respectively. The efficiencies reached, although lower than those measured for spiro-OMeTAD (19.63 %), are good enough to consider the chemical strategy used as an interesting via to design HTMs for PSCs.

Organic compound with tetrahedral-like geometry

An organic compound with a tetrahedral-like geometry is disclosed. The organic compound has a structure represented by formula (I): wherein A1 to A4 each independently represent a 5-membered or 6-membered unsaturated ring; B1 represents direct bonding, —C—, —O—, —N—, —S— or —C═C—; m is 0 or 1; each of Ra's is independently hydrogen, fluorine, oxygen, substituted or unsubstituted C1-C12 alkyl or substituted or unsubstituted C6-C12 aryl; and n is an integer of 0 to 2.

Organic compound having tetrahedron-like configuration

The present invention relates to an organic compound having a tetrahedron-like configuration, wherein the organic compound has a structure represented by the following general formula (I) defined in the specification, A1-A4 are respectively and independently an unsaturated five-membered ring or an unsaturated six-membered ring, B is a direct bond , -C, -O-, -N-, -S-, or -C=C-, m is 0 or 1, Ris hydrogen, fluorine, substituted or unsubstituted C1-C12 alkyl, or substituted or unsubstituted C6-C12 aryl, and n is an integer of 0-2. The organic compound of the present invention has excellentphotoelectric property.

Novel compounds, method of preparation thereof and organic solar cell comprising the same

The present invention relates to a compound represented by chemical formula 1 and having hole transport properties, to a producing method thereof, and to an organic solar cell comprising the same. In the chemical formula 1, X_1, X_2, R_1, and R_2 are the same as defined in the specification.

Rh-catalyzed direct synthesis of 2,2′-dihydroxybenzophenones and xanthones

An efficient rhodium-catalyzed direct synthesis of 2,2′-dihydroxybenzophenones and xanthones was developed from functionalized salicylaldehydes. This approach provides an easy access to various functionalized 2,2′-dihydroxybenzophenone and xanthone core s

XANTHONE COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME

An organic light-emitting device that realizes high-emission efficiency and low-driving voltage is provided. The organic light-emitting device contains a xanthone compound represented by general formula [1].

Palladium-catalyzed oxidative double C-H functionalization/carbonylation for the synthesis of xanthones

Two at once: Xanthones with different functional groups were obtained with CO (balloon) in the presence of a simple catalytic system that consists of Pd(OAc)2, K2S2O8, and trifluoroacetic acid (see scheme). Preliminary mechanism studies reveal that the second C-H functionalization might be the rate-determining step. Copyright