Efficient nickel-catalysed<i>N</i>-alkylation of amines with alcohols
作者:Anastasiia Afanasenko、Saravanakumar Elangovan、Marc C. A. Stuart、Giuseppe Bonura、Francesco Frusteri、Katalin Barta
DOI:10.1039/c8cy01200h
日期:——
selective N-alkylation of amines with alcohols, that is in situ generated from Ni(COD)2 and KOH under ligand-free conditions. This novel method is very efficient for the functionalization of aniline and derivatives with a wide range of aromatic and aliphatic alcohols as well as diols and exhibits excellent functionalgroup tolerance including halides, benzodioxane and heteroaromatic groups. Several TEM measurements
Alcohol Amination Catalyzed by Copper Powder as a Self‐Supported Catalyst
作者:Yajuan Wu、Yongji Huang、Xingchao Dai、Feng Shi
DOI:10.1002/cssc.201801877
日期:2019.7.5
Catalytic alcohol amination is a sustainable reaction for N‐alkyl amine synthesis. Homogeneous and supported copper catalysts have long been studied for this reaction and have given some impressive results. In this study, copper powder is found to behave as an active catalyst for alcohol amination, giving better catalyticperformance than metal‐oxide‐supported nanocopper catalysts. Catalyst characterization
procedure for the synthesis of secondary amines in water has been developed. Combining Ru3(CO)12, tetraphenylcyclopentadienone and a small quantity of TGPS-750-M surfactant, primary and secondary alcohols were alkylated at N employing equimolar amounts of aromatic amines in water. The reaction occurs under microwave (MW) dielectric heating with high conversion and high yield. When required, the use
A copper-catalyzed C–N bond forming reaction among aryl siloxane and primary, secondary amines as well as amides has been described. The reaction was conducted in the presence of P(C6F5)3 and 4 Å molecular sieves in CH2Cl2 at room temperature under O2. A catalytic amount of TBAF was employed to activate aryl siloxanes.
Polyelectrolyte Templated Polymerization in Langmuir Films: Nanoscopic Control of Polymer Chain Organization
作者:M. Sharath Chandra、T. P. Radhakrishnan
DOI:10.1002/chem.200500830
日期:2006.4.3
Polyelectrolytes introduced in the aqueous subphase are shown to have a profound impact on the kinetics of polymerization of N-octadecylaniline at the air/water interface. This can be attributed to changes effected in molecular organization and reorientation behavior in the Langmuirfilm. The polyelectrolytetemplates lead to considerable modification of the morphology of the monomer and polymer Langmuir