Glycinamide hydrochloride as a transient directing group: Synthesis of 2-benzylbenzaldehydes by C(sp<sup>3</sup>)−H arylation
作者:Fei Wen、Zheng Li
DOI:10.1080/00397911.2020.1802759
日期:2020.11.16
Abstract Glycinamide hydrochloride as an inexpensive and commercially available transientdirectinggroup for the C(sp3)−Harylation of 2-methylbenzaldehydes is described. A series of practical 2-benzylbenzaldehydes bearing various functional groups are efficiently synthesized in satisfactory yield by this strategy. This method can also be extended to gram scale. Graphical Abstract
A new synthetic method for the construction of benzoazepine analogues has been developed employing ortho-arylmethylbenzyl azide derivatives as precursors using an azide rearrangement reaction. In this work, 14 benzoazepine compounds were successfully synthesized in moderate to excellent yields. All synthetic benzoazepines were evaluated for their cytotoxicity against normal human kidney cell line (HEK
The present invention relates to compounds of the general formula (I), to the use thereof in electronic devices, preferably as host material for fluorescent dopants or as fluorescent dopant, to a process for the preparation of the compounds of the formula (I), and to electronic devices comprising compounds of the formula (I).
BENZANTHRACENE DERIVATIVES FOR ORGANIC ELECTROLUMINESCENT DEVICES
申请人:Stoessel Philipp
公开号:US20100187505A1
公开(公告)日:2010-07-29
The present invention relates to the compounds of the formula (1) and to organic electroluminescent devices, in particular blue-emitting devices, in which these compounds are used as host material or dopant in the emitting layer and/or as hole-transport material and/or as electron-transport material.
<i>ortho</i>-C(sp<sup>3</sup>)–H arylation of aromatic aldehydes using 2-amino-<i>N</i>-methyl-acetamide as a L,L-type transient directing group
作者:Jinyuan Wang、Yunzhi Liu、Nan Han、Yuan Gao、Jun Luo
DOI:10.1039/d3ob00024a
日期:——
tested, and furnished some polycyclic aromatic hydrocarbons with excellent yields up to 96%. The X-raycrystalstructure of a 2-methylbenzaldehyde ortho-C(sp3)–H palladation intermediate was obtained. Then, a plausible reaction mechanism involving the formation of a [5,6]-fused palladacycle was proposed. This approach offers valuable insights for exploiting novel L,L-type TDGs.