A novel polymer containing phosphorus–nitrogen ligands for stabilization of palladium nanoparticles: an efficient and recyclable catalyst for Suzuki and Sonogashira reactions in neat water
作者:M. Gholinejad、F. Hamed、P. Biji
DOI:10.1039/c5dt01642h
日期:——
having an average diameter of 2–3 nm. The thermally stable heterogeneous catalyst was successfully applied in Suzuki–Miyaura and copper-freeSonogashira–Hagiharacoupling reactions of aryl halides under low palladium loading conditions. Reactions were proceeded in neat water without using any organic co-solvents. The catalyst was successfully recycled for the sample Suzuki–Miyaura reaction nine consecutive
Synthesis and SAR of a mGluR5 allosteric partial antagonist lead: Unexpected modulation of pharmacology with slight structural modifications to a 5-(phenylethynyl)pyrimidine scaffold
作者:Sameer Sharma、Alice L. Rodriguez、P. Jeffrey Conn、Craig W. Lindsley
DOI:10.1016/j.bmcl.2008.05.091
日期:2008.7
This Letter describes the synthesis and SAR, developed through an iterative analogue library approach, of a mGluR5 allosteric partial antagonist lead based on a 5-(phenylethynyl)pyrimidine scaffold. With slight structuralmodifications to the distal phenyl ring, analogues demonstrated a range of pharmacological activities from mGluR5 partial antagonism to full antagonism/negative allosteric modulation
Assemblies of Copper Ferrite and Palladium Nanoparticles on Silica Microparticles as a Magnetically Recoverable Catalyst for Sonogashira Reaction under Mild Conditions
作者:Mohammad Gholinejad、Jahantab Ahmadi
DOI:10.1002/cplu.201500015
日期:2015.6
iodides and bromides under heterogeneous and phosphine-free reactionconditions. The reactions proceed at 50 °C with a low loading of palladiumcatalyst. The magnetically recoverable catalyst is recycled successfully for five consecutive runs with very small drops in catalytic activity.
Highly water-dispersible magnetite nanoparticle supported-palladium–β-cyclodextrin as an efficient catalyst for Suzuki–Miyaura and Sonogashira coupling reactions
作者:H. Salemi、B. Kaboudin、F. Kazemi、T. Yokomatsu
DOI:10.1039/c6ra04575h
日期:——
supporting a palladium–β-cyclodextrin complex as an efficientcatalyst in Suzuki–Miyaura and Sonogashira carbon–carbon couplingreactions. The magnetite nanoparticle supporting catalyst was characterized by FT-IR, CHN, EDS, TGA, XRD, TEM and VSM. The prepared catalyst displayed excellent activity for a wide range of substrates in aqueous solution under mild reaction conditions. The reusability of the magnetite
Efficient Synthesis of Biologically Interesting 3,4-Diaryl-Substituted Succinimides and Maleimides: Application of Iron-Catalyzed Carbonylations
作者:Saisuree Prateeptongkum、Katrin Marie Driller、Ralf Jackstell、Anke Spannenberg、Matthias Beller
DOI:10.1002/chem.201000369
日期:2010.8.16
A straightforward two‐step synthesis of trans‐3,4‐disubstituted succinimides through a palladium‐catalyzed Sonogashira reaction and an iron‐catalyzed double carbonylation is described. In situ oxidative dehydrogenation gave the corresponding 3,4‐diarylmaleimides. By starting from readily available aryl and heteroaryl halides, a variety of new analogues and derivatives of bioactive 3,4‐bisindolylmaleimides