Boron-Selective Biaryl Coupling Approach to Versatile Dibenzoxaborins and Application to Concise Synthesis of Defucogilvocarcin M
摘要:
An efficient synthetic method for versatile dibenzoxaborins based on boron-selective Suzuki-Miyaura cross-coupling between o-borylphenols and aryl halides or triflates bearing a 1,8-diaminonaphthalene-protected o-boryl group is reported. A short synthesis of defucogilvocarcin M was achieved using the proposed method in combination with several other boron-mediated transformations.
Modular Synthesis of Pentagonal and Hexagonal Ring-Fused NBN-Phenalenes Leading to an Excited-State Aromatization-Induced Structural Planarization Molecular Library
PISP in hexagonal ring-fused NBN-π systems, leading to the formation of excimers. Notably, the scope of PISP compounds is still quite limited, and PISP has never been observed in NBN-π systems before. These hexagonal ring-fused NBN-π systems constitute a novel PISP molecular library and appear to be a new class of aggregation-induced excimer emission (AIEE) materials. Finally, the AIEE behavior of these
Versatile Self-Adapting Boronic Acids for H-Bond Recognition: From Discrete to Polymeric Supramolecules
作者:Irene Georgiou、Simon Kervyn、Alexandre Rossignon、Federica De Leo、Johan Wouters、Gilles Bruylants、Davide Bonifazi
DOI:10.1021/jacs.6b11362
日期:2017.2.22
ortho-substituted boronicacids in solution showed that Ka for 1:1 association is in the range between 300 and 6900 M-1. Crystallization of dimeric 1:1 and trimeric 1:2 and 2:1 complexes enabled an in-depth examination of these complexes in the solid state, proving the selection of the -B(OH)2 syn-syn conformer through a pair of frontal H-bonds with the relevant AA partner. Non-ortho-substituted boronicacids result
由于硼酸形成四硼酸酯衍生物的独特动态共价反应性,在材料科学和超分子化学中使用它们的芳基衍生物的兴趣已经上升。然而,它们形成 H 键复合物的能力仅受到轻微影响。在此,我们报告了一系列芳香族硼酸的第一个双 H 键 DD·AA 型复合物的第一个溶液和固态结合研究,这些复合物采用具有合适的互补 H 键受体配偶体的顺-syn 构象。溶液中邻位取代硼酸的缔合常数 (Ka) 的首次测定表明,1:1 缔合的 Ka 在 300 和 6900 M-1 之间。二聚体 1:1 和三聚体 1:2 和 2:1 复合物的结晶使我们能够深入研究固态下的这些复合物,证明通过与相关 AA 伙伴的一对正面 H 键选择了 -B(OH)2 syn-syn 构象异构体。非邻位取代的硼酸产生“扁平”复合物。另一方面,具有邻位取代基的空间要求类似物力求通过旋转 ArB(OH)2 部分来保持其识别特性,形成“T 形”复合物。二硼酸和四氮杂
유기 화합물 및 이를 포함하는 유기 전계 발광 소자
申请人:DOOSAN CORPORATION 주식회사 두산(119987140410) Corp. No ▼ 110111-0013774BRN ▼107-81-00237
公开号:KR101560674B1
公开(公告)日:2015-10-15
본 발명은 신규 유기 화합물 및 이를 포함하는 유기 전계 발광 소자에 관한 것으로서, 인돌로페난트리딘계 화합물이 유기 전계 발광 소자용 재료, 바람직하게는 발광층의 호스트 재료로 도입됨으로써, 유기 전계 발광 소자의 발광효율, 구동 전압 및 수명 등의 전반적인 특성이 향상될 수 있다.