A new reagent 2-(trifluoromethylsulfonyloxy)pyridine (TFOP) was prepared by the reaction of sodium salt of 2-pyridinol with trifluoromethylsulfonyl chloride in dioxane. The compound TFOP in trifluoroacetic acid has been found to intermolecularly dehydrate from benzoic acid and aromatic hydrocarbons to give the corresponding benzophenones in high yield. It was further elucidated, in the reaction of
NOVEL FLUORENYL B-OXIME ESTER COMPOUNDS, PHOTOPOLYMERIZATION INITIATOR AND PHOTORESIST COMPOSITION CONTAINING THE SAME
申请人:SAMYANG CORPORATION
公开号:US20160332960A1
公开(公告)日:2016-11-17
The present invention relates to a novel β-oximester fluorene derivative compound, a photopolymerization initiator comprising the same, and a photoresist composition.
<i>N</i>-Acylimidazoles–Trifluoroacetic Acid System as the Acylating Agent for Aromatic Hydrocarbons
作者:Takashi Keumi、Hiroshi Saga、Hidehiko Kitajima
DOI:10.1246/bcsj.53.1638
日期:1980.6
aliphatic carboxylic acids or substituted benzoic acids with an electron-donating group gave ketones in high yields. The above-mentioned aromatic compounds were also acylated with N-trifluoroacetylimidazole and free carboxylic acids in trifluoroaceticacid. The mechanism for these reactions was assumed to proceed via a mixed anhydride between trifluoroaceticacid and carboxylic acid.
Palladium‐Catalyzed Deuteration of Arylketone Oxime Ethers
作者:Zhen‐Yu Wang、Xu Zhang、Wen‐Qing Chen、Guo‐Dong Sun、Xing Wang、Lin Tan、Hui Xu、Hui‐Xiong Dai
DOI:10.1002/anie.202319773
日期:2024.3.18
A palladium-catalyzed deuteration of arylketone oximeethers has been realized. Regioselective deuteration of some biologically important drugs and natural products is showcased via Friedel–Crafts acylation and subsequent deacylative deuteration. Vicinal difunctionalization of electro-rich arenes is achieved by using the ketone as both directing group and leaving group.
NOVEL -OXIMESTER FLUORENE COMPOUND, A PHOTOPOLYMERIZATION INITIATOR COMPRISING SAME, AND PHOTORESIST COMPOSITION
申请人:Samyang Corporation
公开号:EP3095778A1
公开(公告)日:2016-11-23
The present invention relates to a novel β-oximester fluorene derivative compound, a photopolymerization initiator comprising the same, and a photoresist composition.