Room-Temperature Synthesis of a Hollow Microporous Organic Polymer Bearing Activated Alkyne IR Probes for Nonradical Thiol-yne Click-Based Post-Functionalization

This work shows that hollow microporous organic polymer (H-MOP-A) with activated internal alkynes as IR probes can be prepared by template synthesis based on acyl Sonogashira-Hagihara coupling at room temperature. The H-MOP-A is a versatile platform in the main chain PSM based on nonradical thiol-yne click reaction. Moreover, an IR peak of internal alkynes in the H-MOP-A is very intense and could be utilized in the monitoring of thiol-yne click-based main chain PSM. The functionalized H-MOP-A with carboxylic acids (H-MOP-CA) showed efficient adsorption toward Ag+ ions. The resultant H-MOP-CA-Ag showed excellent performance in the CO2 fixation to alpha-alkylidene cyclic compounds.

Automated summary

This study demonstrates the preparation of hollow microporous organic polymer with activated internal alkynes as IR probes by template synthesis at room temperature. The polymer serves as a versatile platform for nonradical thiol-yne click-based main chain PSM and can be used for monitoring the reaction process. Functionalized polymers show efficient adsorption towards Ag+ ions and exhibit excellent performance in CO2 fixation reactions.