Synthesis of Stable Radicals

Stable radicals such as nitroxyl compounds become increasingly of interest for process control of radical reactions, e.g. polymerization. This practical example demonstrates both the complexity of sample composition after such a synthesis and the changes owing to the instability of a single component. The starting point here is a cleavable biradical which decomposes immediately in aqueous solution.

Chemicals: 3-PCA-anhydride [II] was synthesized by the method of Gallez et al. using PCA [I]; 3-carboxy-2,2,5,5-tetramethylpyrrolidine-1-oxyl) and DCC (dicyclohexylcarbodiimide) (Figure 4).

DCC, CH2CI2

co-o-oc

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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