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Wu D, Martin RT, Piña J, Kwon J, Crockett MP, Thomas AA, Gutierrez O, Park NH, Hedrick JL, Campos LM. Cyclopropenimine-Mediated CO 2 Activation for the Synthesis of Polyurethanes and Small-Molecule Carbonates and Carbamates. Angew Chem Int Ed Engl 2024; 63:e202401281. [PMID: 38462499 DOI: 10.1002/anie.202401281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/29/2024] [Accepted: 03/05/2024] [Indexed: 03/12/2024]
Abstract
Carbon dioxide (CO2) is an abundant C1 feedstock with tremendous potential to produce versatile building blocks in synthetic applications. Given the adverse impact of CO2 on the atmosphere, it is of paramount importance to devise strategies for upcycling it into useful materials, such as polymers and fine chemicals. To activate such stable molecule, superbases offer viable modes of binding to CO2. In this study, a superbase cyclopropenimine derivative was found to exhibit exceptional proficiency in activating CO2 and mediating its polymerization at ambient temperature and pressure for the synthesis of polyurethanes. The versatility of this reaction can be extended to monofunctional amines and alcohols, yielding a variety of functional carbonates and carbamates.
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Affiliation(s)
- Dino Wu
- Department of Chemistry, Columbia University, 10027, New York, NY, USA
| | - Robert T Martin
- Department of Chemistry & Biochemistry, University of Maryland, 8051 Regents Drive, College Park, 20742, Maryland, MD, USA
| | - Jeanette Piña
- Department of Chemistry, Texas A&M University, 3255 TAMU, 580 Ross St, 77843, College Station, TX, USA
| | - Junho Kwon
- Department of Chemistry, Columbia University, 10027, New York, NY, USA
| | - Michael P Crockett
- Department of Chemistry, Texas A&M University, 3255 TAMU, 580 Ross St, 77843, College Station, TX, USA
| | - Andy A Thomas
- Department of Chemistry, Texas A&M University, 3255 TAMU, 580 Ross St, 77843, College Station, TX, USA
| | - Osvaldo Gutierrez
- Department of Chemistry & Biochemistry, University of Maryland, 8051 Regents Drive, College Park, 20742, Maryland, MD, USA
- Department of Chemistry, Texas A&M University, 3255 TAMU, 580 Ross St, 77843, College Station, TX, USA
| | | | - James L Hedrick
- IBM Research-Almaden, 650 Harry Rd., 95120, San Jose, CA, USA
| | - Luis M Campos
- Department of Chemistry, Columbia University, 10027, New York, NY, USA
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