Efficient Multicomponent Active Template Synthesis of Catenanes.

Area of Science:

• Supramolecular Chemistry
• Organic Synthesis

Background:

• Catenanes are mechanically interlocked molecules with unique topological properties.
• Previous synthesis methods often require complex procedures or low yields.

Purpose of the Study:

• To develop a simple and high-yielding active template synthesis for [2]catenanes.
• To demonstrate the versatility of the method for various precursor combinations.

Main Methods:

• Utilizing an active template strategy for mechanical bond formation.
• Employing click chemistry between azide and alkyne functional groups.
• Investigating both single premacrocycle and co-macrocyclization approaches.

Main Results:

• Achieved high yields in the synthesis of [2]catenanes.
• Demonstrated successful macrocyclization using bis-alkyne and bis-azide comonomers.
• Showed applicability to short alkyne/azide components leading to oligomerization before cyclization.

Conclusions:

• The described method offers a straightforward and efficient route to [2]catenanes.
• The active template approach is adaptable for diverse synthetic strategies in supramolecular chemistry.