Abstract
This short review showcases the developing field of C–H activation reactions, with
a particular focus on green catalysis through the use of environmentally friendly
solvents. It evaluates the effects of these solvents on reaction outcomes, environmental
aspects and general efficacy, highlighting their advantages that lead to greater selectivity,
lower levels of toxicity and enhanced reaction rates. Water and biobased alternatives
such as polyethylene glycols, glycerol, 2-methyltetrahydrofuran, γ-valerolactone,
methanol, ethanol, p-cymene and diethyl carbonate are representative examples of such solvents. The scope
of this short review encompasses studies of different methodologies, catalysts, and
reaction conditions that help to develop C–H activation reactions utilizing green
solvents.
1 Introduction
2 Water
3 Polyethylene Glycols (PEGs)
4 Glycerol
5 2-Methyltetrahydrofuran (2-MeTHF)
6 γ-Valerolactone (GVL)
7 Methanol
8 Ethanol
9 p-Cymene
10 Diethyl Carbonate
11 Conclusion
Key words
C–H activation - green solvents - synthetic methodology - transition metals - catalysis