[EN] SILYL SUBSTITUTED AZADIBENZOFURANS AND AZADIBENZOTHIOPHENES<br/>[FR] AZADIBENZOFURANES SUBSTITUÉS PAR SILYLE ET AZADIBENZOTHIOPHÈNES
申请人:BASF SE
公开号:WO2015114102A1
公开(公告)日:2015-08-06
The present invention relates to compounds of formula (I), which are characterized in that they are substituted by at least one group of formula (II) and in that at least one of the substituents B1, B2, B3, B4, B5, B6, B7 and B8 represents N; a process for their production and their use in electronic devices, especially electroluminescent devices. When used as electron transport material, hole blocking material and/or host material for phosphorescent emitters in electroluminescent devices, the compounds of formula I may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices.
Direct conjugate alkylation of α,β-unsaturated carbonyls by Ti<sup>III</sup>-catalysed reductive umpolung of simple activated alkenes
作者:Plamen Bichovski、Thomas M. Haas、Manfred Keller、Jan Streuff
DOI:10.1039/c5ob02631h
日期:——
The titanium(III)-catalysed cross-selective reductive umpolung of Michael-acceptors represents a unique direct conjugate β-alkylation reaction. It allows the cross-selective preparation of 1,6- and 1,4-difunctionalised building blocks without the requirement of stoichiometric organometallic reagents. In this full paper, the development and scope of the titanium(III)-catalysed cross-selective reductive
Copper(I)-Mediated Cascade Reactions: An Efficient Approach to the Synthesis of Functionalized Benzofuro[3,2-<i>d</i>]pyrimidines
作者:Bo Chao、Shijun Lin、Qingdong Ma、Dong Lu、Youhong Hu
DOI:10.1021/ol300822a
日期:2012.5.4
A novel cascade reaction was developed for the synthesis of diverse members of a series of benzofuro[3,2-d]pyrimidine derivatives. The process utilizes readily prepared 3-chlorochromenones and various commercially available amidines and their analogues as starting materials. This tandem reaction is promoted by using a simple copper(I) reagent and involves a chemoselective Michael addition–heterocy
开发了一种新颖的级联反应,用于合成一系列苯并呋喃[3,2- d ]嘧啶衍生物的不同成员。该方法利用容易制备的3-氯色酮和各种市售的am及其类似物作为起始原料。这种串联反应是通过使用简单的铜(I)试剂促进的,涉及化学选择性迈克尔加成-杂环化-分子内环化序列。
A Facile Synthesis of α-Chloro Enones by Oxidative Chlorination
作者:Kyoung Mahn Kim、Kun Hoe Chung、Jae Nyoung Kim、Eung K. Ryu
DOI:10.1055/s-1993-25846
日期:——
The reaction of various α,β-unsaturated enones with hydrogen chloride and m-chloroperbenzoic acid in dimethylformamide at room temperature gave the corresponding α-chloro-α,β-unsaturated enones in good yields with high regioselectivity.
Synthesis of 2-alkyl-chroman-4-ones <i>via</i> cascade alkylation–dechlorination of 3-chlorochromones
作者:Shunyao Li、Lanfei Zhang、Qian He、Xiaofei Zhang、Chunhao Yang
DOI:10.1039/d1ob00463h
日期:——
An efficient and mild synthetic approach for 2-alkyl-substituted chroman-4-ones via zinc mediated cascade decarboxylative β-alkylation and dechlorination of 3-chlorochromones was developed.