A caffeine-based ionic liquid as a novel and eco-friendly catalyst for the synthesis of 1, 8-dioxo-octahydroxanthenes under solvent-free conditions

M Salami, A Ezabadi - Research on Chemical Intermediates, 2019 - Springer
A new Brönsted acidic ionic liquid has been synthesized using caffeine and p-
toluenesulfonic acid as precursors. The IL was fully characterized by FT-IR, 1 H NMR, 13 C …

Introduction of a novel dicationic Brönsted acidic ionic liquid based on pyrazine and its application in the synthesis of xanthenediones and 3, 4-dihydropyrimidin-2(1H …

SE Sadati Sorkhi, MM Hashemi, A Ezabadi - Research on Chemical …, 2020 - Springer
A novel dicationic Brönsted acidic ionic liquid based on pyrazine has been prepared and
characterized by FTIR, 1 H NMR, 13 C NMR, MS, thermal gravimetric and differential thermal …

A Decennary Review of 1, 3-Dicarbonyls about Three Kinds of Mechanisms

H Qian, D Huang, G Yan, L Lu - Current Organic Chemistry, 2018 - ingentaconnect.com
1, 3-Dicarbonyls are widely used in organic reactions. They are able to perform as
precursors of pyrimidinones, pyrroles, quinolones, isoquinolines, triazoles and furans et al …

Synthesis and characterization of a novel Brönsted acidic dicationic ionic liquid based on piperazine and its application in the one-pot synthesis of various xanthenes …

Z Ehsani-Nasab, A Ezabadi - Research on Chemical Intermediates, 2022 - Springer
In this paper, an interesting Brönsted acidic dicationic ionic liquid based on piperazine was
prepared via two-step synthesis. The structure of the dicationic ionic liquid (DIL) was …

Six-Membered Ring Systems: With O and/or S Atoms

CMM Santos, AMS Silva - Progress in Heterocyclic Chemistry, 2017 - Elsevier
This is a personal overview of the most exciting chemistry on the synthesis of O-and S-6-
membered heterocycles published in 2016. Novel approaches for the synthesis of a huge …

[PDF][PDF] Waste waters of milk and cheese processing as an efficient promoter for the synthesis of 1, 8-dioxo-octahydroxanthenes

S Fiorito, F Epifano, F Preziuso, VA Taddeo… - BULGARIAN …, 2018 - bcc.bas.bg
Waste waters of agricultural and industrial processing have been recently employed to
effectively promote numerous “classic” and innovative processes of synthetic organic …