A 2-((4-Arylpiperazin-1-yl)methyl)phenol ligated Pd(<scp>ii</scp>) complex: an efficient, versatile catalyst for Suzuki–Miyaura cross-coupling reactions
作者:Srinivas Keesara、Saiprathima Parvathaneni
DOI:10.1039/c5nj03450g
日期:——
N,N,O-Tridentate palladium(ii) complex 4a was found to be an efficient catalyst for the Suzuki cross-couplingreaction of aryl halides (iodo-, bromo- and chloro-), which afforded cross-coupling products in good to excellent yields.
N,N,O-三齿钯 (ii) 配合物 4a 被发现是芳基卤化物(碘-、溴-和氯-)的 Suzuki 交叉偶联反应的有效催化剂,可提供良好的交叉偶联产物优良的产量。
Synthesis of18F-labelled biphenyls via SUZUKI cross-coupling with 4-[18F]fluoroiodobenzene
作者:Björn Steiniger、Frank R. Wuest
DOI:10.1002/jlcr.1099
日期:2006.8
The SUZUKI reaction of organoboron compounds with 4-[18F]fluoroiodobenzene has been developed as a novel radiolabelling technique in 18F chemistry. The cross-coupling reaction of p-tolylboronic acid with 4-[18F]fluoroiodobenzene was used to screen different palladium complexes, bases and solvents. Optimized reaction conditions (Pd2(dba)3, Cs2CO3, acetonitrile, 60°C for 5 min) were further applied to
Palladium-Catalyzed Cyanation of Aryl Sulfonium Salts
作者:Mengna Liu、Benqiang Cui、Chuntao Zhong、Yanhui Shi、Yanfeng Dang、Changsheng Cao
DOI:10.1021/acs.orglett.3c00829
日期:2023.6.9
dimethylsulfonium salts using cheap, nontoxic, and bench-stable K4[Fe(CN)6]·3H2O as the cyanating reagent has been developed. The reactions proceeded well under base-free conditions with various sulfonium salts and provided aryl nitrile with yields of up to 92%. Aryl sulfides can be transformed to aryl nitriles directly via a one-pot process, and the protocol is scalable. Density functional theory calculations
使用廉价、无毒且实验室稳定的 K 4 [Fe(CN) 6 ]·3H 2 O 作为氰化试剂,开发了钯催化的芳基二甲基锍盐氰化反应。该反应在无碱条件下使用各种硫鎓盐进行得很好,并以高达 92% 的产率提供芳基腈。芳基硫化物可以通过一锅法直接转化为芳基腈,并且该协议是可扩展的。进行密度泛函理论计算以研究涉及氧化加成、配体交换、还原消除和再生以产生产物的催化循环的反应机理。
Novel thiophenes and analogues with anthelmintic activity against Haemonchus contortus
作者:Isabel C González、Leon N Davis、Charles K Smith
DOI:10.1016/j.bmcl.2004.05.044
日期:2004.8
A new series of analogues of 4-(4-fluorophenyl)-2-methylthio-thiophene-3-carbonitrile (1) were synthesized and evaluated for their in vitro and in vivo anthelmintic activity against Haemonchus contortus. (C) 2004 Elsevier Ltd. All rights reserved.