Electrochemically Enabled, Nickel-Catalyzed Dehydroxylative Cross-Coupling of Alcohols with Aryl Halides
作者:Zijian Li、Wenxuan Sun、Xianxu Wang、Luyang Li、Yong Zhang、Chao Li
DOI:10.1021/jacs.0c13093
日期:2021.3.10
chemical science, this functional group represents a highly attractive starting material for forging new C–C bonds. Here, we demonstrate that the combination of anodic preparation of the alkoxy triphenylphosphonium ion and nickel-catalyzed cathodic reductive cross-coupling provides an efficient method to construct C(sp2)–C(sp3) bonds, in which free alcohols and aryl bromides—both readily available chemicals—can
Chiral Hetero- and Carbocyclic Compounds from the Asymmetric Hydrogenation of Cyclic Alkenes
作者:J. Johan Verendel、Jia-Qi Li、Xu Quan、Byron Peters、Taigang Zhou、Odd R. Gautun、Thavendran Govender、Pher G. Andersson
DOI:10.1002/chem.201104073
日期:2012.5.21
Several types of chiral hetero‐ and carbocycliccompounds have been synthesized by using the asymmetrichydrogenation of cyclicalkenes. N,P‐Ligated iridium catalysts reduced six‐membered cyclicalkenes with various substituents and heterofunctionality in good to excellent enantioselectivity, whereas the reduction of five‐membered cyclicalkenes was generally less selective, giving modest enantiomeric
Hydrogen‐Bonding Catalyzed Ring‐Closing C−O/C−O Metathesis of Aliphatic Ethers over Ionic Liquid under Metal‐Free Conditions
作者:Huan Wang、Yanfei Zhao、Fengtao Zhang、Yunyan Wu、Ruipeng Li、Junfeng Xiang、Zhenpeng Wang、Buxing Han、Zhimin Liu
DOI:10.1002/anie.202004002
日期:2020.7.13
have wide applications, and their efficient and green synthesis is very interesting. Herein, we report hydrogen‐bonding catalyzed ring‐closing metathesis of aliphatic ethers to O‐heterocycles over ionic liquid (IL) catalyst under metal‐ and solvent‐free conditions. The IL 1‐butylsulfonate‐3‐methylimidazolium trifluoromethanesulfonate ([SO3H‐BMIm][OTf]) is discovered to show outstanding performance, better
an efficient catalyst for the acylativecleavage of C–O bond of ethers with acyl chlorides. When acyclic ethers were allowed to react with acyl chlorides in the presence of a catalytic amount of ReBr(CO)5, acylativecleavage of C–O bond of acyclic ethers smoothly proceeded to give the corresponding esters in moderate to good yields. Similarly, cyclicethers were acylative cleaved by acyl chlorides to
发现rh络合物是醚与酰氯的C-O键的酰基化裂解的有效催化剂。当在催化量的ReBr(CO)5存在下使无环醚与酰氯反应时,无环醚的C-O键的酰基裂顺利进行,从而以中等至良好的收率得到了相应的酯。类似地,使用Re 2 O 7催化剂将环醚酰基氯酰化裂解,得到高产率的相应的氯取代的酯。
[EN] PYRAZOLO FUSED HETEROCYCLIC COMPOUNDS AS ERK INHIBITORS<br/>[FR] COMPOSÉS PYRAZOLO HÉTÉROCYCLIQUES CONDENSÉS COMME INHIBITEURS D'ERK
申请人:CHANGZHOU JIEKAI PHARMATECH CO LTD
公开号:WO2017028314A1
公开(公告)日:2017-02-23
Disclosed herein is a compound of formula (I) and/or a pharmaceutically acceptable salt thereof that can serve as Erk inhibitors. They are potentially useful in the treatment of diseases treatable by inhibition of Erk, such as cancers. Also disclosed herein is a pharmaceutical composition, comprising a compound of formula I and/or a pharmaceutically acceptable salt thereof and a pharmaceutically acceptable carrier.