硼异戊烯是含有三配位硼的七元不饱和环系。尽管迄今已报道了许多用芳族体系环化的硼异氰酸酯化合物,但仅合成了一种[ b,d,f ]环化的四环硼异氰酸酯。在本研究中,我们合成苯并[ d ]噻吩并[ b,˚F ] borepins作为一类新建立用于通过以下结构特征动机功能材料块组成:(1)二噻吩的化学稳定性高[ b,˚Fborepin物种;(2)具有孔销环的高共轭四环体系;(3)通过在苯环上引入官能团而易于调节的电子结构。所制得的销钉在空气中无论在溶液中还是固体中都是稳定的,可以通过改变苯环上的取代基来微调电子状态。有趣的是,DFT计算表明,LUMO和LUMO + 1的能级受苯并[ d ]环的强烈影响,这取决于稠合噻吩环上硼桥联的位置。NICS和HOMA方法证明,苯并[ d ]二噻吩并[ b,fborepin系统相对较小。我们还报告了首次在硼销化合物中观察到固态的苯并[ d ] dithieno [
Arynes are found to be facilely inserted into bis(pinacolato)diboron by using a platinum–isocyanide catalyst, affording diverse 1,2-diborylarenes, which can be converted into o-terphenyls via Suzuki–Miyaura coupling reaction.
[EN] 1,4-DITHIENYLBENZENE DERIVATIVE<br/>[FR] DÉRIVÉ DU 1,4-DITHIÉNYLBENZÈNE
申请人:NAT INST OF ADVANCED IND SCIEN
公开号:WO2006022040A1
公开(公告)日:2006-03-02
A novel compound having a mesophase forming property or liquid crystallinity and a high level of electric charge mobility, a liquid crystal composition comprising said compound and a charge transfer material comprising the same, and various element using said charge transfer material. The novel compound is a 1,4-dithienylbenzene derivative represented by general formula (I): (I) wherein R1 and R2 each independently represent a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms, provided that R1 and R2 do not simultaneously represent a hydrogen atom; and A represents a benzene ring optionally having a substituent.
Provided are a novel compound that is mesogenic or liquid crystalline and has a high charge mobility, liquid crystal compositions comprising the compound, charge transport materials containing the same, and various elements using the charge transport materials. The novel compound is a 1,4-dithienylbenzene derivatives represented by the following general formula (I):
wherein R
1
and R
2
each independently represent a hydrogen atom or a hydrocarbyl group having 1 to 20 carbon atoms, provided that R
1
and R
2
are not simultaneously a hydrogen atom; and A represents an optionally substituted benzene ring.
[EN] NOVEL ORGANIC ELECTROLUMINESCENT COMPOUND, AND ORGANIC ELECTROLUMINESCENT DEVICE INCLUDING SAME<br/>[FR] COMPOSÉ ORGANIQUE ÉLECTROLUMINESCENT, ET DISPOSITIF ORGANIQUE ÉLECTROLUMINESCENT COMPRENANT LE COMPOSÉ
申请人:DOOSAN CORP
公开号:WO2013009032A2
公开(公告)日:2013-01-17
본 발명은 신규한 유기 발광 화합물 및 이를 포함하는 유기 전계 발광 소자에 관한 것으로, 보다 구체적으로는 정공 또는 전자의 주입 및 수송, 발광 재료로서 사용되는 신규한 유기 발광 화합물 및 이를 호스트로서 채용하고 있는 유기 전계 발광 소자에 관한 것이다.
Photoinduced Changes in Aromaticity Facilitate Electrocyclization of Dithienylbenzene Switches
作者:Baswanth Oruganti、Péter Pál Kalapos、Varada Bhargav、Gábor London、Bo Durbeej
DOI:10.1021/jacs.0c06327
日期:2020.8.12
dithienylethenes, a major class of molecular switches. Specifically, we report on the synthesis of a dithienylbenzene switch where the typical nonaromatic, ethene-like motif bridging the two thienyl units is replaced by a benzene motif, and show that this compound undergoes electrocyclization upon irradiation with UV-light. Furthermore, through a detailed quantumchemical analysis, we demonstrate that the electrocyclization