Tag: 178.016

Syntheses and properties of five-ring fused azo- and thio-aromatic compounds containing imide substituent was written by Yang, Ning;Qiao, Xiaolan;Fang, Renren;Tao, Jingwei;Hao, Jian;Li, Hongxiang. And the article was included in Huaxue Xuebao in 2016.Synthetic Route of C8H7BO2S This article mentions the following:

Five-ring fused azo- and thio-aromatic compounds 1 and 2 containing imide substituent were designed and synthesized. 3,4-Dibromo-1-(2-ethylhexyl)-1H-pyrrole-2,5-dione reacted with lithium indyl and benzothiophene-3-boronic acid resp., affording intermediates 3 and 4. Compound 3 was intramol. cyclized in the presence of PdCl₂ to give target compound 1. And compound 2 was prepared through intramol. cyclization of intermediate 4 by means of photochem. ring closure reaction and oxidation The physicochem. properties of compounds 1 and 2 were thoroughly investigated with TGA, UV-vis absorption spectra and cyclic voltammetry. Exptl. results showed the introduction of imide substituent not only increased the solubility of compounds 1 and 2, but also decreased their energy levels of the HOMO (HOMO) and the LUMO (LUMO). The HOMO/LUMO energy levels of compounds 1 and 2 are -5.58/-2.25 eV -6.04/-3.51 eV resp. Single crystals of compound 1 were grown through solvent evaporation method in the mixture of dichloromethane and petroleum ether. Single crystal structure revealed compound 1 has a planar conjugated core and forms dimmer in the crystal. Strong π-π intermol. interactions exist in the dimmer, and hydrogen bonds (NH···O=C) are observed among dimmers. The charge carrier mobilities of compounds 1 and 2 were investigated through thin film transistors. The transistors were fabricated with top-contact/bottom-gate device configurations. And thin films were deposited in vacuum on octadecyltrichlorosilane (OTS)-modified Si/SiO₂ substrates. Transistors performance of compound 2 displays obvious p-type performance with a mobility of 2.75 × 10^-3 cm²·V^-1·s^-1. However, compound 1 exhibited no organic field-effect transistor (OFET) behavior. In order to understand the different device performances of compounds 1 and 2, their thin films were investigated by at. force microscopy (AFM) and X-ray diffraction (XRD). AFM images showed that compound 1 formed continuous thin film with small size of microstructures, the existence of grain boundaries hindered the transport of charge carriers in the film. XRD curves revealed that compound 2 formed crystalline thin films. Through the continuity of 2 films was worse than that of 1, the large size of microstructures and the crystalline property of the films facilitated the transport of charge carriers. In the experiment, the researchers used many compounds, for example, Benzo[b]thiophen-3-ylboronic acid (cas: 113893-08-6Synthetic Route of C8H7BO2S).

Benzo[b]thiophen-3-ylboronic acid (cas: 113893-08-6) belongs to benzothiophene derivatives. Benzothiophene is relatively a stable molecule. The core structure is a part of various pharmaceutical substances and natural products. It is also used in the manufacturing of dyes such as thioindigo.Synthetic Route of C8H7BO2S

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

A bifunctional ligand enables efficient gold-catalyzed hydroarylation of terminal unactivated propargylic alcohols with heteroareneboronic acids was written by Liao, Shengrong;Xu, Huayan;Xu, Liang;Liang, Baoxia;Yang, Bin;Wang, Junfeng;Zhou, Xuefeng;Lin, Xiuping;Luo, Zaigang;Liu, Yonghong. And the article was included in Tetrahedron in 2021.Recommanded Product: Benzo[b]thiophen-3-ylboronic acid This article mentions the following:

Terminal allylic alcs. were important motifs in natural products, and also key intermediates/precursors in numerous novel reaction transformations. In this study, enabled by a bifunctional ligand featuring a basic amino group, a gold-catalyzed hydroarylation of terminal unactivated propargylic alcs. with heteroareneboronic acids were first established, and efficiently afforded various terminal aryl-substituted allylic alcs. with moderate to high yields under mild conditions. In the experiment, the researchers used many compounds, for example, Benzo[b]thiophen-3-ylboronic acid (cas: 113893-08-6Recommanded Product: Benzo[b]thiophen-3-ylboronic acid).

Benzo[b]thiophen-3-ylboronic acid (cas: 113893-08-6) belongs to benzothiophene derivatives. Benzothiophenes are valuable heterocycles that are widely used in medicines, agrochemicals, and materials science. The different substitution patterns in these heterocycles offer new opportunities for drug discovery and other applications in materials science.Recommanded Product: Benzo[b]thiophen-3-ylboronic acid

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Dual Photochemical Bond Cleavage for a Diarylethene-Based Phototrigger Containing both Methanolic and Acetic Sources was written by Galangau, Olivier;Delbaere, Stephanie;Ratel-Ramond, Nicolas;Rapenne, Gwenael;Li, Ruiji;Calupitan, Jan Patrick Dela Cruz;Nakashima, Takuya;Kawai, Tsuyoshi. And the article was included in Journal of Organic Chemistry in 2016.Synthetic Route of C8H7BO2S This article mentions the following:

In this paper, we present a novel concept for “smarter” photolabile organic compounds combining not one but two caged functions. As proof of principle, this diarylethene-based compound possesses two inhibited chem. groups (OMe and OAc) and its efficient release in different solvents is reported. In low- to medium-polarity media, both MeOH and AcOH are released, with a slight preferential uncaging of AcOH except in 1,4-dioxane, where MeOH is preferentially released. In contrast, DMSO or DMF render AcOH release strongly dominating. DFT calculations of the corresponding photoreactive conformations not only afford strong support to the observed release of MeOH and AcOH but also qual. explain the preferential release of acid in terms of dispersive noncovalent interactions. Finally, mechanistic aspects are discussed on the bases of the spectroscopic observations and of the TD-DFT calculations In the experiment, the researchers used many compounds, for example, Benzo[b]thiophen-3-ylboronic acid (cas: 113893-08-6Synthetic Route of C8H7BO2S).

Benzo[b]thiophen-3-ylboronic acid (cas: 113893-08-6) belongs to benzothiophene derivatives. Benzothiophene finds use in research as a starting material for the synthesis of larger, usually bioactive structures. Due to its aromaticity, thiophenes do not exhibit the same properties as conventional thioethers.Synthetic Route of C8H7BO2S

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Copper-mediated Chan-Evans-Lam N-arylation of 5-methylene-4-aryl-1,5-dihydro-2H-pyrrol-2-one derivatives was written by Almohaywi, Basmah;Iskander, George;Yu, Tsz Tin;Bhadbhade, Mohan;Black, David StC.;Kumar, Naresh. And the article was included in Tetrahedron Letters in 2018.Recommanded Product: 113893-08-6 This article mentions the following:

A simple and efficient procedure for the synthesis of N-aryl 5-methylene-4-aryl-1,5-dihydro-2H-pyrrol-2-one derivatives, e.g., I. has been developed through copper-mediated C-N bond formation. The synthetic protocol allows for versatile and robust C-N arylation with a range of readily available boronic acids under mild conditions. In the experiment, the researchers used many compounds, for example, Benzo[b]thiophen-3-ylboronic acid (cas: 113893-08-6Recommanded Product: 113893-08-6).

Benzo[b]thiophen-3-ylboronic acid (cas: 113893-08-6) belongs to benzothiophene derivatives. Benzothiophene is used as starting material for the synthesis of bioactive molecules. The core structure is a part of various pharmaceutical substances and natural products. It is found within the chemical structures of pharmaceutical drugs such as zileuton, raloxifene, and sertaconazole, and also BTCP.Recommanded Product: 113893-08-6

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem