Hypervalent iodine-based Trifluoromethylating agents made in Switzerland

Area of Science:

• Organic Chemistry
• Hypervalent Iodine Chemistry

Background:

• The study focuses on two specific hypervalent iodine compounds: 3,3-dimethyl-1-(trifluoromethyl)-3H-1λ³,2-benziodaoxole (1) and 1-(trifluoromethyl)-3H-1λ³,2-benziodaoxol-3-one (2).
• These reagents have gained increasing attention in synthetic chemistry.

Purpose of the Study:

• To provide a comprehensive overview of research conducted on compounds 1 and 2.
• To detail the synthesis, solid-state structures, and reactivity of these hypervalent iodine reagents.

Main Methods:

• Synthesis of novel hypervalent iodine compounds.
• X-ray crystallography for solid-state structure determination.
• Analysis of bond-length derived parameters to understand hypervalent bonding.

Main Results:

• Classification of hypervalent bond changes in relation to backbone modifications using parameter 'p'.
• Correlation established between parameter 'p' and solution-phase reactivities.
• Demonstration of diverse activation strategies for reagents 1 and 2 through selected applications.

Conclusions:

• The research provides a detailed understanding of the synthesis, structural characteristics, and reactivity of key hypervalent iodine reagents.
• The parameter 'p' serves as a valuable tool for predicting and understanding the behavior of these compounds in various chemical environments.