Screwing the helical chirality through terminal peri-functionalization

Area of Science:

• Organic Chemistry
• Stereochemistry
• Materials Science

Background:

• Helical chirality is a significant, yet underappreciated, form of molecular chirality.
• Molecules exhibiting helical chirality play vital roles in biological processes and advanced materials.
• Traditional methods for generating helical chirality involve ring expansion via cycloaddition reactions.

Purpose of the Study:

• To review key advancements in generating helical chiral architectures.
• To highlight parallel approaches, including classical and novel methods.
• To underscore the importance of helical chirality in chemistry and beyond.

Main Methods:

• Review of classical cycloaddition and related reactions for helical structure generation.
• Exploration of the emerging peri-functionalization approach for chiral helicity.
• Synthesis and analysis of molecular architectures with helical chirality.

Main Results:

• Cycloaddition reactions provide established routes to helical molecules.
• Peri-functionalization offers a new and effective pathway for generating chiral helical molecules.
• Both approaches contribute to the diverse toolkit for synthesizing helical chiral architectures.

Conclusions:

• Significant progress has been made in synthesizing helical chiral molecules.
• The peri-functionalization approach represents a notable recent advancement.
• Understanding and controlling helical chirality is key for biological and materials applications.