NiFe<sub>2</sub>O<sub>4</sub>@SiO<sub>2</sub>@ZrO<sub>2</sub>/SO<sub>4</sub><sup>2−</sup>/Cu/Co nanoparticles: a novel, efficient, magnetically recyclable and bimetallic catalyst for Pd-free Suzuki, Heck and C–N cross-coupling reactions in aqueous media
作者:Seyyedeh Ameneh Alavi G.、Mohammad Ali Nasseri、Milad Kazemnejadi、Ali Allahresani、Mahdi HussainZadeh
DOI:10.1039/d0nj06208a
日期:——
The novel heterogeneous bimetallic nanoparticles of Cu–Co were synthesized based on magnetic nanoparticles, and the magnetic nanocatalyst was characterized by XRD, FE-SEM, EDX mapping, BET, TEM, HRTEM, FTIR, TGA, and VSM. This catalyst was successfully applied as a recyclable magnetically catalyst in Heck, Suzuki, and C–N cross-coupling reactions with various aryl halides (iodides, bromides, and chlorides
Alkene formation through condensation of phenylmethanesulphonyl fluoride with carbonyl compounds
作者:Shinzo Kagabu、Kenji Hara、Junko Takahashi
DOI:10.1039/c39910000408
日期:——
Arylmethanesulphonyl fluorides condense with aromatic, aliphatic and conjugated aldehydes and ketones in the presence of potassium carbonate and a crown ether to give aryl-substituted alkenes in satisfactory to modest yields.
N-Butylpyrrolidinone as a dipolar aprotic solvent for organic synthesis
作者:James Sherwood、Helen L. Parker、Kristof Moonen、Thomas J. Farmer、Andrew J. Hunt
DOI:10.1039/c6gc00932h
日期:——
N-Butylpyrrolidinone (NBP) has been demonstrated as a suitable safer replacement solvent for N-Methylpyrrolidinone (NMP) in selected organic syntheses.
Synthesis and characterization of a new zwitterionic palladium complex as an environmentally friendly catalyst for the Heck-Mizoroki coupling reaction in GVL
作者:Mojtaba Bagherzadeh、Hamed Mahmoudi、Saeed Ataie、Mohammad Bahjati、Reza Kia、Paul R. Raithby、Luigi Vaccaro
DOI:10.1016/j.mcat.2019.110406
日期:2019.9
A new zwitterionic Palladium (II) complex has been synthesized by the one-pot mixing of Pd(OAc)2, 2-aminophenol and (3-formyl-4-hydroxy-5-methylbenzyl) triphenylphosphonium chloride, in refluxing ethanol. The metal complex formed was characterized by 1H NMR, 13C NMR, 31P NMR and X-ray crystallographic technique and its efficiency tested as a homogeneous pre-catalyst in Heck-Mizoroki cross coupling
一种新的两性离子钯(II)络合物已经由一锅煮的Pd(OAC)的混合合成2,2-氨基苯酚和(3-甲酰基-4-羟基-5-甲基苄基)三苯基鏻氯化物,在回流的乙醇中。形成的金属配合物通过1 H NMR,13 C NMR,31 P NMR和X射线晶体学技术进行表征,并使用γ-戊内酯(GVL)作为Heck-Mizoroki交叉偶联反应的均相预催化剂,对其效率进行了测试。生物质衍生的绿色培养基。所有产品均以良好至极好的收率获得。