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Updated: Dec 25, 2025

Optimization of the Ugi Reaction Using Parallel Synthesis and Automated Liquid Handling

Optimization of the Ugi Reaction Using Parallel Synthesis and Automated Liquid Handling

Published on: November 11, 2008

Green Method for the Synthetic Ugi Reaction by Twin Screw Extrusion without a Solvent and Catalyst

Mahmoud Abd El Aleem Ali Ali El-Remaily¹, Ahmed M M Soliman¹, Omar M Elhady¹

¹Department of Chemistry, Faculty of Science, Sohag University, Sohag 82524, Egypt.

|April 1, 2020

Abstract:

This study describes the solvent and catalyst-free Ugi reaction by way of twin screw extrusion (TSE). Multicomponent chemical synthesis can be converted into a single process without repeated use of solvents through TSE. High synthetic yields are achieved in short reaction times and produced in solvent-free conditions, which lead to a more environmentally friendly process.

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Olefin Metathesis Polymerization: Overview

Olefin Metathesis Polymerization: Overview

Recently, the development of olefin metathesis polymerization advanced the field of polymer synthesis. Simply put, the reorganization of substituents on their double bonds between two olefins in the presence of a catalyst is known as the olefin metathesis reaction. The use of metathesis reaction for polymer synthesis is called olefin metathesis polymerization.
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists of a...

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