Date of Award
5-2025
Document Type
Thesis
Degree Name
Bachelor of Science
Department
Chemistry
First Advisor
Dr. Michael Norris
Abstract
This study investigates the development and application of organocatalysts for the reduction of CO₂ under mild and sustainable conditions. A key focus is the synthesis of an organo-boronic acid–amine catalyst system (derived from thianthren-1-ylboronic acid and diethanolamine) and its subsequent evaluation in reactions with labeled CO₂. Through NMR analyses, including time-resolved monitoring of isotopically labeled substrates, the formation of formyl intermediates and downstream products such as formate and methoxy species was confirmed, demonstrating active CO₂ transformation. Multiple catalyst variants (NA1 series) were screened to assess activity and selectivity, with experimental conditions optimized in terms of temperature, solvent selection, and the use of boron-based reductants (HBpin). Complementary electrochemical approaches using amine co-substrates (isopropylamine, diisopropylamine, and methylpiperazine) were also explored, broadening the scope of potential pathways for carbon capture and conversion. Together, these results highlight the versatility, cost-effectiveness, and reduced environmental impact of organocatalyst-mediated processes compared to conventional metal-based routes. The research thus provides a foundational framework for further optimizing organocatalytic CO₂ reduction and underscores the promise of these catalysts for sustainable chemical transformations.
Recommended Citation
Asif, Nehal, "Organocatalyst Frameworks for CO2 Reduction to Methanol: Selectivity Control and Mild-Condition Activation" (2025). Honors Theses. 1794.
https://scholarship.richmond.edu/honors-theses/1794
