Trifluoroacetylation of amines with trifluoroacetic acid in the presence of trichloroacetonitrile and triphenylphosphine
作者:Joong-Gon Kim、Doo Ok Jang
DOI:10.1016/j.tetlet.2009.11.105
日期:2010.1
We developed a mild and convenient trifluoroacetylation process for amines using a combination of trichloroacetonitrile and triphenylphosphine. The reaction that we designed is applicable to the trifluoroacetylation of a wide variety of amines, including amines with stereogenic centers, which underwent trifluoroacetylation without racemization.
A one-pot procedure for trifluoroacetylation of arylamines using trifluoroacetic acid as a trifluoroacetylating reagent
作者:Junpei Ohtaka、Takeshi Sakamoto、Yasuo Kikugawa
DOI:10.1016/j.tetlet.2009.01.088
日期:2009.4
procedure for the preparation of aryl trifluoroacetamides from aryl amines is described that employs 2–4 M equiv of trifluoroacetic acid in refluxing xylene as a trifluoroacetylating agent. Addition of an amount of pyridine that is equimolar to the amount of trifluoroacetic acid present in the reaction mixture facilitates the trifluoroacetylation of rather basic arylamines.
<i>The ortho</i>and<i>meta</i>Magnesiation of Functionalized Anilines and Amino-Substituted Pyridines and Pyrazines at Room Temperature
作者:Gabriel Monzón、Ilaria Tirotta、Paul Knochel
DOI:10.1002/anie.201205465
日期:2012.10.15
A practical ortho,meta, (or even ortho,ortho′) magnesiation of trifluoroacetamides of anilines, aminopyridines, and aminopyrazines at room temperature was performed with TMPMgCl⋅LiCl or TMP2Mg⋅2 LiCl. These magnesiations are compatible with several carbonyl functionalities and allow access to polysubstituted anilides in satisfactory yields.
[EN] ARYL SULFONAMIDES AS SMALL MOLECULE STAT3 INHIBITORS<br/>[FR] ARYLSULFONAMIDES UTILISÉS EN TANT QU'INHIBITEURS DE STAT3 À PETITES MOLÉCULES
申请人:UNIV HAWAII
公开号:WO2021016333A1
公开(公告)日:2021-01-28
The present disclosure provides pharmaceutical compositions comprising aryl sulfonamide Stat3 small molecule inhibitors and certain pharmaceutically acceptable salts thereof, and methods of their use for treating cancer.
Arenethiolate as a Dual Function Catalyst for Photocatalytic Defluoroalkylation and Hydrodefluorination of Trifluoromethyls
作者:Can Liu、Kang Li、Rui Shang
DOI:10.1021/acscatal.2c00592
日期:2022.4.1
a photocatalyst in photoredoxcatalysis, but we report herein that an arene thiolate with an appropriate substituent can be photoactivated under visible light to function as both a strongly reducing electron-donating redox catalyst and a HAT catalyst to enable catalytic C–F activation of trifluoromethyl substrates for selective hydrodefluorination and coupling with various alkenes in the presence of
已知硫醇在光氧化还原催化中充当与光催化剂协同作用的氢原子转移催化剂,但我们在本文中报道了具有适当取代基的芳烃硫醇盐可以在可见光下光活化,从而起到强还原性给电子氧化还原的作用催化剂和 HAT 催化剂能够催化 C-F 活化三氟甲基底物,用于选择性加氢脱氟并在甲酸盐存在下与各种烯烃偶联。这些反应证明了硫醇盐作为双功能光催化剂的前景广阔。该方法的合成效用通过适用的三氟甲基底物的广泛范围来证明,包括三氟甲基化(杂)芳烃、三氟乙酸盐和三氟乙酰胺,它们表现出高水平的化学选择性。