69747-77-9

Upstream product

• 97511-04-1 2-bromodibenzo[b,d]thiophene 
• 54815-67-7 3-methoxyldibenzo[b,d]thiophene 
• 34860-66-7 7-methoxy-1,2,3,4-tetrahydro-dibenzothiophene 
• 15570-12-4 3-methoxybenzenethiol 
• 34860-65-6 2-(m-methoxyphenylthio)cyclohexanone 
• 17402-80-1 3-nitrobenzo[b]thiophene 
• 54125-02-9 danishefsky's diene 
• 108847-24-1 dibenzo[b,d]thiophen-3-ylboronic acid 
• 822-87-7 2-Chlorocyclohexanone 

Relevant academic research and scientific papers

NOVEL AMINE-BASED COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME

The present invention relates to a novel amine-based compound represented by Chemical Formula 1 and an organic light emitting device including the same. The compound provides improved efficiency, low driving voltage, and improved lifetime characteristic of the organic light emitting device.

Palladium(ii)-catalyzed synthesis of dibenzothiophene derivatives via the cleavage of carbon-sulfur and carbon-hydrogen bonds

A new process has been developed for the palladium(ii)-catalyzed synthesis of dibenzothiophene derivatives via the cleavage of C-H and C-S bonds. In contrast to the existing methods for the synthesis of this scaffold by C-H functionalization, this new catalytic C-H/C-S coupling method does not require the presence of an external stoichiometric oxidant or reactive functionalities such as C-X or S-H, allowing its application to the synthesis of elaborate π-systems. Notably, the product-forming step of this reaction lies in an oxidative addition step rather than a reductive elimination step, making this reaction mechanistically uncommon.

Polar Diels-Alder reactions using electrophilic nitrobenzothiophenes. A combined experimental and DFT study

The reactions between 2- and 3-nitrobenzothiophenes with three dienes of different nucleophilicity, 1-methoxy-3-trimethylsilyloxy-1,3-butadiene, 1-trimethylsilyloxy-1,3-butadiene and isoprene developed in anhydrous benzene and alternative under microwave irradiation with molecular solvents or in free solvent conditions, respectively, for produce dibenzothiophenes permit to conclude that both nitroheterocycles act as electrophile with the cited dienes. In the cases of the dienes 1-methoxy-3-trimethylsilyloxy-1,3-butadiene and 1-trimethylsilyloxy-1,3-butadiene which posses major nucleophilicity the observed product is the normal cycloaddition one. However when the diene is isoprene the product with both electrophiles follow the hetero Diels-Alder way. These reactions are considered polar cycloaddition reactions and the yields are reasonables. Moreover the polar Diels-Alder reactions of nitrobenzothiophenes with electron rich dienes 1-trimethylsilyloxy-1,3-butadiene have been theoretically studied using DFT methods.

Synthesis and photochromic behaviour under flash photolysis and continuous irradiation of novel 2H-chromenes derived from hydroxydibenzothiophenes

The synthesis and photochromic properties, under flash photolysis and continuous irradiation, of new 2,2-diphenyl-2H-1-benzopyrans including a dibenzothiophene nucleus are described. Under flash photolysis, all compounds exhibit photochromic behaviour in solution at room temperature, but under continuous irradiation the same was not perceived. Compared to reference compounds, a general bathochromic shift and the existence of two absorption bands in the Vis spectra of the open forms, leading to a boardening in the absorption range, is observed. The heteroannellation effects on the spectrokinetic parameters are variable and depend on the position and geometry of the fused benzothiophene moiety. The effect of electron-withdrawing substituents in C(6) of the 2H-1-benzopyran skeleton, with the benzothiophene nucleus fused at the 7,8 positions, are analyzed.

Synthesis of Monoamino and Monohydroxydibenzothiophenes

The synthesis of the four monoaminodibenzothiophenes and the four monohydroxydibenzothiophenes is described.