A novel catalyst-free, eco-friendly, on water protocol for the synthesis of 2,3-dihydro-1H-perimidines
作者:Nissy Ann Harry、Reeba Mary Cherian、S. Radhika、Gopinathan Anilkumar
DOI:10.1016/j.tetlet.2019.150946
日期:2019.8
The first greenest methodology for the synthesis of 2,3-dihydro-1H-perimidines on water is described. 1,8-Diamino naphthalene was reacted with different types of aldehydes at room temperature to furnish the product in moderate to excellent yields in 30 min. A multi-gram scale reaction is also performed to ensure the scalability of the reaction.
A novel catalyst‐free mechanochemical protocol for the synthesis of 2,3‐dihydro‐1<i>H</i>‐perimidines
作者:Nissy Ann Harry、Sankaran Radhika、Mohan Neetha、Gopinathan Anilkumar
DOI:10.1002/jhet.3880
日期:2020.4
A rapid, efficient, and green grinding assisted method for the synthesis of 2,3‐dihydro‐1H‐perimidines has been developed. 1,8‐Diaminonaphthalene and aldehydes were ground using mortar and pestle for 5 minutes affording the product in moderate to excellent yields. The methodology minimises the use of conventional workup and column chromatographic techniques.
[BTBA]Cl-FeCl<sub>3</sub> as an Efficient Lewis Acid Ionic Liquid for the Synthesis of Perimidine Derivatives
作者:Kiumars Bahrami、Sepideh Saleh
DOI:10.1080/15533174.2014.989602
日期:2016.6.2
An effective synthesis of various biologically important 2,3-dihydroperimidines from reaction of aldehydes and naphthalene-1,8-diamine has been developed using [BTBA]Cl-FeCl3 as an efficient Lewis acid ionicliquid. This method is a very simple and high yielding reaction for the preparation of the titled compounds. Different functional groups are tolerated under this reaction conditions including ether
SiO}_2}}\) nanoparticles (NPs) as an eco-friendly, efficient and reusable catalyst in the synthesis of 2,3-dihydro-1H-perimidines as well as tetraketones. For tetraketones syntheses, a simple tandem Knoevenagel condensation following Michael addition procedure is performed by the reaction between benzaldehydes and 5,5-dimethyl-1,3-cyclohexanediones under solvent-free condition using \(\hbox SiO}_2}}\)
Synthesis of new TCH/Ni‐based nanocomposite supported on SBA‐15 and its catalytic application for preparation of benzimidazole and perimidine derivatives
microscopy, atomic absorption spectroscopy and N2 adsorption–desorption (Brunauer–Emmett–Teller) techniques. The catalytic performance of Ni/TCH@SBA‐15 (NNTS‐15) was determined for the synthesis of 2‐aryl‐substituted benzimidazoles and 2,3‐dihydroperimidines. The excellent yields within shorter reaction times, simplicity of catalytic methods, non‐toxicity and clean reactions, mild reaction conditions and easy