一系列磷酸盐和膦酸酯,(p -R 1 C 6 H 4 O)3 x P(O)(OC 6 H 5)x和(p -R 1 C 6 H 4 O)3 x P(O)( C 6 H 5)x分别为(R 1 = C 2 F 5,n -C,F 17和C 3 F 7(OCF(CF 3(CF 2)n其中n= 2、3、4和6)是通过适当的酚与相应的卤化磷反应制备的。大部分酚是通过对-R 1 C 6 H 4(OCH 3)2中间体从对-R 1 C 6 H 4 Br获得的,然后进行水解。R 1 C 6 H 4 O基团的存在促进了水解的不稳定性。磷酸酯比相应的膦酸酯更易于水解。R 1 C 6 H 4的数量增加O基团导致较低的水解稳定性。需要该化合物存在两个p -C 3 F 7(OCF(CF 3)CF 2)n C 6 H 4 O取代基,以使其在低温下可溶于全氟聚烷基醚流体。溶解度随n的增加而增加。
The aromatic perfluoroalkylation catalyzed by a copper(I) salt with bis(perfluoroalkyl)zinc reagents Zn(RF)2(DMPU)2, which were prepared and then isolated as a stable white powder from perfluoroalkyl iodide and diethylzinc, was accomplished to provide the perfluoroalkylated products in good‐to‐excellent yields. The advantages of this reliable and practical catalytic reaction are 1) air‐stable and easy‐to‐handle
TRICYCLIC PYRIDINE DERIVATIVES, MEDICAMENTS CONTAINING SUCH COMPOUNDS, THEIR USE AND PROCESS FOR THEIR PREPARATION
申请人:WAGNER Holger
公开号:US20120046304A1
公开(公告)日:2012-02-23
The present invention relates to compounds defined by formula I
wherein the variables R
1
-R
8
are defined as in the description, possessing valuable pharmacological activity. Particularly, the compounds are inhibitors of cholesterol ester transfer protein (CETP) and thus are suitable for treatment and prevention of diseases which can be influenced by inhibition of this enzyme.
Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I
as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
Pentafluoroethylation of Arenediazonium Tetrafluoroborates Using On‐Site Generated Tetrafluoroethylene
作者:Bo Xing、Lingchun Li、Chuanfa Ni、Jinbo Hu
DOI:10.1002/cjoc.201900268
日期:2019.11
Copper‐mediated pentafluoroethylation of arenediazonium tetrafluoroborates with tetrafluoroethylene (TFE) on‐site generated from TMSCF3 has been developed as a new method to prepare pentafluoroethyl arenes. The active pentafluoroethylation reagent “CuC2F5” is pre‐generated from CuSCN, TFE and CsF, and its generation and further reaction are strongly solvent‐dependent. This pentafluoroethylation reaction
已经开发了由TMSCF 3现场产生的四氟硼酸芳族二唑鎓与四氟乙烯(TFE)的铜介导的五氟乙基化,这是制备五氟乙基芳烃的一种新方法。活性五氟乙基化试剂“ CuC 2 F 5 ”是由CuSCN,TFE和CsF预先生成的,其生成和进一步的反应强烈依赖于溶剂。该五氟乙基化反应代表了Sandmeyer型五氟乙基化的第一个例子,它具有良好的官能团耐受性,并且在合成复杂的生物活性化合物方面具有潜在的应用价值。
The present invention concerns novel heteroaryl-N-aryl thiosemicarbazones and their use in pest control, as insecticides and acaπcides This invention also includes preparation of the pesticide compositions containing the compounds, and methods of controlling insects using the compounds