101228-48-2

Upstream product

• 31574-87-5 2,8-dibromodibenzothiophene 
• 98-80-6 phenylboronic acid 
• 132-65-0 dibenzothiophene 

Downstream Products

• 1166-18-3 meta-quaterphenyl 
• 24253-53-0 2,11-diphenyltriphenylene 
• 949925-61-5 2,8-diphenyldibenzo[b,d]thiophene-4-boronic acid 

Relevant academic research and scientific papers

Active-alkali metal promoted reductive desulfurization of dibenzothiophene and its hindered analogues

Dibenzothiophene and some related organosulfur compounds are efficiently reductively desulfurized under mild reaction conditions, with Na and/or Li metal in the presence of a catalytic amount of tetraphenylethylene in THF at room temperature. This simple methodology was applied to the synthesis of several substituted biphenyls, thus realizing a connection between the directing properties of the sulfur atom of dibenzothiophene and the efficiency of 1,2-dianions of tetraphenylethane as homogenous electron transfer reagents.

Synthesis of Aromatic Disulfonic Acids for Water-Soluble Dibenzothiophene Derivatives

There is a need for efficient methods for the synthesis of water-soluble dibenzothiophene (DBT) and dibenzothiophene S -oxide (DBTO) derivatives to allow for the study of atomic oxygen in biological applications. Attaining water-solubility of aromatic compounds is effectively achieved through functionalization with sulfonic acid groups. Three approaches for the synthesis were considered. An indirect approach was unsuccessful. A modular approach was found to be highly effective for one DBTO disulfonic acid derivative (>99% pure). The direct approach was the most straightforward and highest-yielding route. Additionally, a highly effective, scalable, and improved purification method was identified for disulfonic acid DBT and DBTO derivatives, allowing for the isolation of positional isomers and other modifications by using reverse-phase high-performance flash chromatography.

Electron transport compound and the use of the compound of the organic electroluminescent element (by machine translation)

This invention relates to a new type of the formula I compounds I compounds and organic electroluminescent element. In formula I, X and Y independently represent having 5 to 10 carbon atoms of the aromatic or hetero aromatic hydrocarbon; and Ar 1 to Ar 7 that is independently 4 to 12 carbon atoms an unsubstituted or substituted aromatic hydrocarbon, or a 4 to 12 carbon atoms of the unsubstituted or a substituted condensed polycyclic aromatic hydrocarbon, or Ar 1 to Ar 7, as required, with the adjacent aromatic hydrocarbon to form a cyclized or fused aromatic ring system. When the formula I compounds in the element, that can realize a high light-emitting efficiency, long life and low driving voltage. (by machine translation)

ELECTRON TRANSPORTING COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICES USING THE SAME

Disclosed are a novel compound represented by chemical formula 1 and an organic electroluminescent device using the same. In the chemical formula 1, X and Y individually represent an aromatic or heteroaromatic hydrocarbon group having 5 to 10 carbon atoms. Ar_1 to Ar_7 individually represent a substituted or unsubstituted aromatic hydrocarbon having 4 to 12 carbon atoms or a substituted or unsubstituted condensed polycyclic aromatic hydrocarbon having 4 to 12 carbon atoms. Or, Ar_1 to Ar_7 individually represent a cyclic or fused aromatic ring system having an adjacent aromatic hydrocarbon. When the compound represented by the chemical formula 1 is used in the device, the device can have high light emitting efficiency, extended lifespan, and a lower driving voltage.

Transition-Metal-Free Synthesis of Carbazoles and Indoles by an SNAr-Based "aromatic Metamorphosis" of Thiaarenes

Dibenzothiophene dioxides, which are readily prepared through oxidation of the parent dibenzothiophenes, undergo nucleophilic aromatic substitution with anilines intermolecularly and then intramolecularly to yield the corresponding carbazoles in a single operation. The "aromatic metamorphosis" of dibenzothiophenes into carbazoles does not require any heavy metals. This strategy is also applicable to the synthesis of indoles. Since electron-deficient thiaarene dioxides exhibit interesting reactivity, which is not observed for that the corresponding electron-rich azaarenes, a combination of a thiaarene-dioxide-specific reaction with the SNAr-based aromatic metamorphosis allows transition-metal-free construction of difficult-to-prepare carbazoles.

ELECTRON TRANSPORT COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE COMPOUND

PROBLEM TO BE SOLVED: To provide a novel transport compound which can correspond to long life, high efficiency, low driving voltage, and wide color gamut. SOLUTION: Provided is a novel compound represented by formula (I) and an organic electroluminescent device using the compound. [In the formula, X and Y are an aromatic hydrocarbon or a heteroaromatic hydrocarbon having 5 to 10 carbon atoms; Ar1 to Ar7 are an unsubstituted or substituted aromatic hydrocarbon having 4 to 12 carbons, or an unsubstituted or substituted condensed polycyclic aromatic hydrocarbon having 4 to 12 carbons; or Ar1 to Ar7 together with neighboring aromatic hydrocarbons may form a cyclized aromatic ring structure or a condensed aromatic ring structure.] COPYRIGHT: (C)2015,JPOandINPIT

Synthesis, photophysical and electrochemical properties of 2,8-diaryl-dibenzothiophene derivatives for organic electronics

A series of 2,8-p-diaryldibenzothiophene derivatives were synthesized and characterized. These molecules have electron withdrawing or electron donating groups at the para phenyl position, which alters the electronic properties of these derivatives. The qu