유기전계 발광층 재료용 붕소 착화합물, 이의 제조방법 및 이를 포함하는 유기전계 발광다이오드
申请人:Wonkwang University Center for Industry-Academy Cooperation 원광대학교산학협력단(220040233365) BRN ▼403-82-09152
公开号:KR101521483B1
公开(公告)日:2015-06-05
본 발명은 유기전계 발광층 재료용 붕소 착화합물, 이의 제조방법 및 이를 포함하는 유기전계 발광다이오드에 관한 것이다. 본 발명의 붕소 착화합물은 열 안정성, 색 순도 및 발광 효율 등 광학적 성질이 우수하게 나타나므로, OLED 소자에서 발광층의 적색 도판트로 매우 유용하게 사용할 수 있다.
Access to Enantioenriched Benzylic 1,1-Silylboronate Esters by Palladium-Catalyzed Enantiotopic-Group Selective Suzuki–Miyaura Coupling of (Diborylmethyl)silanes with Aryl Iodides
作者:Junghoon Kim、Seung Hwan Cho
DOI:10.1021/acscatal.8b03979
日期:2019.1.4
This work describes the palladium-catalyzed enantiotopic-group selective Suzuki–Miyaura cross-coupling of (diborylmethyl)silanes with aryl iodides. The combination of a Pd(TFA)2 and rev-Josiphos-type ligand bearing a 3,5-bis(trifluoromethyl)phenyl as benzylic phosphine substituent in the presence of NaI as an additive and NaOMe as a base promotes the reaction to high efficiency and enantioselectivity
Combining the chemistry of metal–organic frameworks (MOFs) and covalentorganicframeworks (COFs) can bring new opportunities for the design of advanced materials with enhanced tunability and functionality. Herein, we constructed two COFs based on Ni–bis(dithiolene) units and imine bonds, representing a bridge between traditional MOFs and COFs. The Ni–bis(dithiolene)tetrabenzaldehyde as the 4-connected
Aryl iodides are superior coupling partners in cross-coupling reactions compared to the corresponding chlorides or bromides. Unfortunately, the iodides are much more expensive, if commercially available at all, than the other halides. Thus, it is often mandatory to transform the available bromides into the corresponding iodides. The copper-catalyzed aromatic Finkelstein reaction turned out to be the method of choice to prepare a number of highly functionalized iodo(het)aryls, including pyridines, 2,2'-bipyridines, and chiral compounds.