[EN] OXIME ESTER PHOTOINITIATORS<br/>[FR] PHOTO-INITIATEURS À BASE D'ESTER D'OXIME
申请人:BASF SE
公开号:WO2021175855A1
公开(公告)日:2021-09-10
Disclosed are α-oxo oxime ester compounds based on carbazole derivatives which have specific substituent groups useful as a photoinitiator, as well as photopolymerizable compositions comprising said photoinitiator and ethylenically unsaturated compounds. The photopolymerizable compositions are useful, for example, in photoresist formulations for display applications, e.g. liquid crystal display (LCD), organic light emitting diode (OLED) and touch panel.
The photoredox alkylarylation of styrenes with alkyl <i>N</i>-hydroxyphthalimide esters and arenes involving C–H functionalization
作者:Xia Wang、Ya-Fei Han、Xuan-Hui Ouyang、Ren-Jie Song、Jin-Heng Li
DOI:10.1039/c9cc07494e
日期:——
alkylarylation of styrenes with alkyl NHP esters and arenes to access alkylated arene derivatives through C-C bond cleavage and C-H functionalization is reported. By utilizing visible-light photoredox catalysis, alkyl N-hydroxyphthalimide esters serving as alkyl carbon-centered radicals and a wide range of arenes (e.g., indoles, pyrrole, and electron-rich arenes) as nucleophiles were used to enable the introduction
Pd‐Catalyzed Synthesis of Vinyl Arenes from Aryl Halides and Acrylic Acid
作者:Yang Gao、Yang Ou、Lukas J. Gooßen
DOI:10.1002/chem.201902022
日期:——
reaction of acrylic acid, immediately followed by protodecarboxylation of the cinnamic acid intermediate. The use of the carboxylate group as a deciduous directing group ensures high selectivity for monoarylated products. The vinylation process is generally applicable to diversely substituted substrates. Its utility is shown by the synthesis of drug‐like molecules and the gram‐scale preparation of key intermediates
A Neutral Metal-Free System for Head-to-Tail Dimerization of Electron-Rich Alkenes
作者:A-Yun Luo、Yan Bao、Xiu-Fen Cheng、Xi-Sheng Wang
DOI:10.1055/s-0036-1589039
日期:2017.9
Abstract A neutral metal-free system for the head-to-tail dimerization of electron-rich alkenes with stoichiometric amount of BrCCl2H and NaI is reported. This reaction proceeds under mild conditions with high efficiency and broad scope. A neutral metal-free system for the head-to-tail dimerization of electron-rich alkenes with stoichiometric amount of BrCCl2H and NaI is reported. This reaction proceeds
Iron-Catalyzed Intermolecular 1,2-Difunctionalization of Styrenes and Conjugated Alkenes with Silanes and Nucleophiles
作者:Yuan Yang、Ren-Jie Song、Xuan-Hui Ouyang、Cheng-Yong Wang、Jin-Heng Li、Shenglian Luo
DOI:10.1002/anie.201702349
日期:2017.6.26
The first iron‐catalyzed 1,2‐difunctionalization of styrenes and conjugated alkenes with silanes and either N or C, using an oxidative radical strategy, is described. Employing FeCl2 and di‐tert‐butyl peroxide allows divergent alkene 1,2‐difunctionalizations, including 1,2‐aminosilylation, 1,2‐arylsilylation, and 1,2‐alkylsilylation, which rely on a wide range of nucleophiles, namely, amines, amides