Selective fluorination of alkyl C–H bonds <i>via</i> photocatalysis
作者:Choon Wee Kee、Kek Foo Chin、Ming Wah Wong、Choon-Hong Tan
DOI:10.1039/c4cc01848f
日期:——
We report the generation of cationic N-radicals from Selectfluor® via energy transfer with anthraquinone as a photocatalyst for the fluorination of unactivated C–H bonds.
Trifluoroacetic Acid Derivatives as Nucleophilic Trifluoromethylating Reagents
作者:Thierry Billard、Bernard R. Langlois、Lukas Jablonski、Jérôme Joubert
DOI:10.1055/s-2003-36787
日期:——
Secondary trifluoroacetamides and alkyl trifluoroacetates can be used as nucleophilictrifluoromethylatingreagents towards non-enolizable ketones by action of potassium tert-butoxide.
通过叔丁醇钾的作用,仲三氟乙酰胺和三氟乙酸烷基酯可用作对不可烯醇化的酮的亲核三氟甲基化试剂。
Fluorine-containing dielectric media and capacitors employing such media
申请人:Pennwalt Corporation
公开号:US04899249A1
公开(公告)日:1990-02-06
A dielectric medium composition comprising a fluorine-containing amide or a fluorine-containing sulfonamide and capacitors or other electric devices incorporating said composition, are disclosed herein.
本文披露了一种含氟酰胺或含氟磺酰胺的介电介质组合物,以及包含该组合物的电容器或其他电器件。
Procatalysts, catalyst systems, and use in olefin polymerization
申请人:——
公开号:US20010025005A1
公开(公告)日:2001-09-27
There are described solid procatalysts, catalyst systems incorporating the solid procatalysts, and the use of the catalyst systems in olefin polymerization and interpolymerization.
本文介绍了固体原催化剂、含有固体原催化剂的催化剂体系以及催化剂体系在烯烃聚合和互聚中的应用。
Procatalysts, catalyst systems, and use in OLEFIN polymerization
申请人:——
公开号:US20010029286A1
公开(公告)日:2001-10-11
There are described solid procatalysts, catalyst systems incorporating the solid procatalysts, and the use of the catalyst systems in olefin polymerization and interpolymerization.