[EN] PYRROLOPYRIMIDINE ALKYNYL COMPOUNDS AND METHODS OF MAKING AND USING SAME [FR] COMPOSÉS D'ALCYNYLE DE PYRROLOPYRIMIDINE ET LEURS PROCÉDÉS DE PRÉPARATION ET D'UTILISATION
C−I-Selective Cross-Coupling Enabled by a Cationic Palladium Trimer
作者:Claudia J. Diehl、Thomas Scattolin、Ulli Englert、Franziska Schoenebeck
DOI:10.1002/anie.201811380
日期:2019.1.2
air‐stable Pd trimer and presents unambiguous reactivity data of its privileged capability to differentiate C−I over C−Br bonds in C−C bond formations (arylation and alkylation) of polyhalogenated arenes, which typical Pd0 and PdI‐PdI catalysts fail to deliver. Experimental and computational reactivity data, including the first location of a transition state for bond activation by the trimer, are presented
尽管人们越来越关注在催化中利用一种以上金属的协同效应,但除双金属体系外,人们所知甚少。该报告描述了直接进入空气稳定的Pd三聚体的方法,并提供了明确的反应性数据,该数据具有在多卤代芳烃的C-C键形成(芳构化和烷基化)中区分C-1与C-Br键的特权。0和Pd I -Pd I催化剂无法输送。给出了实验和计算反应性数据,包括三聚体激活键的过渡态的第一个位置,支持直接的三聚体反应性是可行的。
A Modular Synthesis of Teraryl‐Based α‐Helix Mimetics, Part 4: Core Fragments with Two Halide Leaving Groups Featuring Side Chains of Proteinogenic Amino Acids
A series of para-bromoiodoarene compounds decorated with the sidechains of all proteinogenic amino acids is reported. These fragments serve as building blocks for the modular assembly of teraryl-based α-helix mimetics via sequential Pd cross-coupling. Compared to our established iodotriflate approach, the new building blocks showed higher stability and better reactivity under cross-coupling conditions
A visible light photocatalytic [3+2] cycloaddition of alkynes with readily accessible organic iodides as the C3 synthon is developed herein. By merging halogen atomtransfer (XAT) and hydrogen atomtransfer (HAT), alkyl/aryl iodides serve as a formal diradical precursor and add across C-C triple bonds to deliver a number of functionalized cyclopentanes in moderate to high yields with exceptional regio-
[EN] ORGANIC COMPOUND, AND ORGANIC ELECTROLUMINESCENT DEVICE CONTAINING SAME<br/>[FR] COMPOSÉ ORGANIQUE ET DISPOSITIF ÉLECTROLUMINESCENT ORGANIQUE LE CONTENANT<br/>[KO] 유기 화합물 및 이를 포함하는 유기 전계 발광 소자
申请人:DOOSAN CORP
公开号:WO2015111943A1
公开(公告)日:2015-07-30
본 발명은 유기 화합물 및 이를 포함하는 유기 전계 발광 소자에 관한 것으로서, 본 발명의 유기 화합물은 유기 전계 발광 소자의 유기물층, 바람직하게는 발광층에 사용됨에 따라 유기 전계 발광 소자의 발광효율, 구동 전압, 수명 등을 향상시킬 수 있다.