Abstract
Application of silica nanopowder (15 nm) supported by potassium hydrogen sulphate has been demonstrated to be an effective recyclable catalyst system for the opening of terminal epoxide ring using alcohol and/or amine nucleophiles regioselectively at the terminal position in 3 hours at external temperature 70 °C. The terminal insertion of nucleophile has also been observed with potassium bisulphate supported on silica fume surface having particle size 100-150 nm with moderate products yield. Under this mild condition, no extra solvent is required
Keywords: Denopamine, epoxides, nucleophile, potassium hydrogen sulphate, silica fume.
Graphical Abstract
Call for Papers in Thematic Issues
Exploring the Role of Chemical Graph Theory in Advancing Current Organic Synthesis
Organic synthesis is a fundamental discipline in chemistry, crucial for the creation of complex molecules with diverse applications in pharmaceuticals, materials science, and beyond. However, the process of designing efficient synthetic routes for target molecules remains challenging. Chemical graph theory, a branch of theoretical chemistry, offers powerful tools for understanding ...read more
Photoswitches for Molecular Recognition
This Special Issue would cover the hot topics on synthesis and chemical and photophysical characterization of new photoswitchable derivatives and their applications on molecular recognition of metabolites and biological active compounds, both in physiological medium and in living cells. Photoswitches are compounds that can change their conformation or properties in ...read more
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