通过在催化性Pd(OAc)2和K 2 S 2 O 8作为氧化剂的存在下,通过对苯甲酸酯的芳基邻-sp 2 C-H键进行氧化偶联,成功地完成了2,2'-双苯胺的制备。在室温(25°C)下在MsOH / CF 3 CO 2 H(TFA)中溶解。在这些偶联反应中,被各种给电子或吸电子基团取代的苯甲酸酯的芳环是可容忍的。
Palladium(II)-Catalyzed Oxidative Homo- and Cross-Coupling of Aryl <i>ortho</i>-sp<sup>2</sup> C–H Bonds of Anilides at Room Temperature
作者:Chong Mei、Wenjun Lu
DOI:10.1021/acs.joc.8b00120
日期:2018.4.20
The preparation of secondary 2,2′-bisanilides has been successfully achieved through an oxidative coupling of aryl ortho-sp2 C–H bonds of anilides in the presence of catalytic Pd(OAc)2 and K2S2O8 as an oxidant in MsOH/CF3CO2H (TFA) at roomtemperature (25 °C). The aromatic rings of anilides substituted by various electron-donating or electron-withdrawing groups are tolerant in these coupling reactions
通过在催化性Pd(OAc)2和K 2 S 2 O 8作为氧化剂的存在下,通过对苯甲酸酯的芳基邻-sp 2 C-H键进行氧化偶联,成功地完成了2,2'-双苯胺的制备。在室温(25°C)下在MsOH / CF 3 CO 2 H(TFA)中溶解。在这些偶联反应中,被各种给电子或吸电子基团取代的苯甲酸酯的芳环是可容忍的。
Palladium-Catalysed Synthesis of α-(Trifluoromethyl)styrenes by Means of Directed C-H Bond Functionalization
We report the first introduction of 2-bromo-3,3,3-trifluoropropene (BTP) by directed C–H bond functionalization. The developed method gives straightforward access to α-(trifluoromethyl)styrene derivatives without prior prefunctionalization of the substrates. This palladium-catalysed transformation was applied to a broad range of substrates, and the corresponding trifluoromethylated products were obtained
Nickel(II)- and Silver(I)-Catalyzed C–H Bond Halogenation of Anilides and Carbamates
作者:Ebrahim Kianmehr、Hadi Afaridoun
DOI:10.1055/s-0040-1705972
日期:2021.4
ortho-C–H bond halogenation of anilides and N-aryl carbamates using easily available N-halosuccinimides (NXS) as the active halogenation reagent in the presence of nickel or silver catalyst has been developed. This method provides a new approach to 2-haloanilides and carbamates, which may serve as starting materials for the synthesis of pharmaceutically and biologically active compounds.
Silver-Catalyzed Chemo- and Regioselective Nitration of Anilides
作者:Ebrahim Kianmehr、Sepideh Bahrami Nasab
DOI:10.1002/ejoc.201800779
日期:2018.12.13
A highly regioselective silver‐catalyzed nitration of anilides through C–H bond functionalization produces the corresponding ortho‐nitroanilides moderate to good yields. The reaction proceeds with NaNO2 as the nitration agent.
This invention relates to compounds that inhibit protein tyrosine kinase activity. In particular the invention relates to compounds that inhibit the protein tyrosine kinase activity of growth factor receptors, resulting in the inhibition of receptor signaling, for example, the inhibition of VEGF receptor signaling and HGF receptor signaling. More particularly, the invention relates to compounds, compositions and methods for the inhibition of VEGF receptor signaling and HGF receptor signaling. The invention also provides compositions and methods for treating cell proliferative diseases and conditions.