A novel silver nanoparticle embedded mesoporous polyaniline (mPANI/Ag) nanocomposite as a recyclable catalyst in the acylation of amines and alcohols under solvent free conditions
Magnetically recyclable silica-coated ferrite magnetite-K<sub>10</sub> montmorillonite nanocatalyst and its applications in O, N, and S-acylation reaction under solvent-free conditions
作者:Nitin Tandon、Shripad M. Patil、Runjhun Tandon、Pushpendra Kumar
DOI:10.1039/d1ra02222a
日期:——
Novel silica-coated ferrite nanoparticles supported with montmorillonite (K10) have been prepared and explored for their catalytic activity for the O, N, and S-acylation reactions under solvent-free conditions.
Environmentally benign decarboxylative <i>N</i>-, <i>O</i>-, and <i>S</i>-acetylations and acylations
作者:Santanu Ghosh、Anisha Purkait、Chandan K. Jana
DOI:10.1039/d0gc03731a
日期:——
An operationally simple and general method for acetylation and acylation of a wide variety of substrates (amines, alcohols, phenols, thiols, and hydrazones) has been reported. Meldrum's acid and its derivatives have been used as an air-stable, non-volatile, cost-effective, and easy to handle acetylating/acylating agent. Easily separable byproducts (CO2 and acetone) allowed the isolation of analytically
De novo synthesis and lectin binding studies of unsaturated carba-pyranoses
作者:Timo Leermann、Oliver Block、Michael A. L. Podeschwa、Uwe Pfüller、Hans-Josef Altenbach
DOI:10.1039/c003597a
日期:——
Starting from branched para-benzoquinones a practical and highly flexible route is described for the preparation of unsaturated carbapyranoses. The potential of the synthesized galactose analogues to act as competitive inhibitors in lectin-carbohydrate interactions is investigated by means of Surface Plasmon Resonance (SPR) Spectroscopy.
This invention relates to a range of alpha substituted 2-benzyl substituted imidazole compounds and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes for their synthesis and their use as parasiticides.
A Direct, Straightforward Conversion of Methoxymethyl Ethers into Acetates
作者:M. P. Bosch、I. Petschen、A. Guerrero
DOI:10.1055/s-2000-6258
日期:——
The direct transformation of MOM-protected alcohols into the corresponding acetates by acetic anhydride/ferric chloride in CH2Cl2, in a one-step process and good to excellent yields, is reported. The reaction has been applied to a variety of substrates and occurs with retention of configuration.