13781-50-5

Upstream product

• 31123-60-1 2-(o-carboxybenzoyl)dibenzothiophene 
• 113354-61-3 6,6a,12a,13-Tetrahydroanthra<2,3-b>benzothiophen-7,12-dion 
• 99074-13-2 2,3-Bis(bromomethyl)benzothiophene 
• 95-15-8 Benzo[b]thiophene 
• 130-15-4 [1,4]naphthoquinone 
• 515158-87-9 2-phenylsulfido-benzene boronic acid 
• 572-83-8 2-bromoanthracene-9,10-dione 
• 132-65-0 dibenzothiophene 

Downstream Products

• 1402419-88-8 C₃₂H₂₀O₂S 

Relevant academic research and scientific papers

Bitrialkylsilylethynyl thienoacenes: Synthesis, molecular conformation and crystal packing, and their field-effect properties

In order to study the influence of molecular conformation on the packing mode of single crystals, four bitrialkylsilylethynyl thienoacenes, TIPS-ABT, TMS-ABT, TIPS-CABT and TMS-CABT, were synthesized and characterized. Since there are different conformations arising from the rotation of the isopropyl groups, two types of single crystals of the thienoacene TIPS-ABT were successfully grown, and the related quantum-chemical calculations predict that in theory they have significantly different hole mobilties (μh). For example, the μh of TIPS-ABT-1 is 1.74 cm2 V-1 s -1, a value nearly two hundred times larger than that of TIPS-ABT-2 (0.09 cm2 V-1 s-1), when the reorganization energy is obtained at the B3LYP/6-31+G(d) level. The results demonstrate the important influence of molecular conformation on the mode of crystal packing, and theoretically show the importance of organic semiconductor conformational control on the charge mobility. The thin film FET devices based on the four thienoacenes were prepared via the vacuum-deposit method. The TIPS-CABT-based devices afford hole mobilities of up to 0.012 cm2 V-1 s-1 with a current on-off ratio of 106.

Phosphorescence host material having spiro ring structure, and organic light emitting device

The present invention provides a phosphorescence host material having a spiro ring structure, and an organic light emitting device, and belongs to the technical field of organic photoelectric materials. A purpose of the present invention is to solve the technical problems of low light emitting efficiency, high driving voltage and poor light emitting performance of the organic photoelectric material in the prior art. According to the present invention, the experiment results show that the organic light emitting device prepared from the phosphorescence host material having the spiro ring structure has the light emitting efficiency of up to 20.8 cd/A and the driving voltage of 3.3 V, and is the excellent OLED material.

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.

NOVEL SPIRO COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE HAVING THE SAME

The present invention provides a novel stable organic compound and also provides an organic light-emitting device having a high luminous efficiency and a low driving voltage. The present invention relates to a spiro compound represented by the following Formula [1]: wherein, R1 to R5 are each independently selected from hydrogen atoms and alkyl groups having 1 to 4 carbon atoms and may be the same or different; and X is any of a sulfur atom, an oxygen atom, and a carbon atom, and when X is a carbon atom, the carbon atom may have one or two alkyl groups having 1 to 4 carbon atoms, and when the carbon atom has two alkyl groups having 1 to 4 carbon atoms, the two alkyl groups may be the same or different.

ANTHRA[2,3-B]BENZO[D]THIOPHENE DERIVATIVES AND THEIR USE AS ORGANIC SEMICONDUCTORS

The invention relates to novel anthra[2,3-b]benzo[d]thiophene derivatives, methods of their preparation, their use as semiconductors in organic electronic (OE) devices, and to OE devices comprising these derivatives.

2,3-Dihydro-2,3-bismethylenebenzothiophene, a Reactive Annellated Diene

The cis configurated annellated diene 4 is generated in solution by the reaction of the easily accessible 2,3-bis(bromomethyl)-benzothiophene (3) with sodium iodide.In the presence of CC or NN dienophiles cycloaddition reactions take place and lead to 5, 6, 11, and 12 with acceptable yields.This annellation method is useful for the synthesis of polycyclic compounds.