Syntheses of polycarbonate and polyurethane precursors utilizing CO2 over highly efficient, solid as-synthesized MCM-41 catalyst
| Title | Syntheses of polycarbonate and polyurethane precursors utilizing CO2 over highly efficient, solid as-synthesized MCM-41 catalyst |
| Publication Type | Journal Article |
| Year of Publication | 2006 |
| Authors | Srivastava, R, Srinivas, D, Ratnasamy, P |
| Journal | Tetrahedron Letters |
| Volume | 47 |
| Issue | 25 |
| Pagination | 4213-4217 |
| Date Published | JUN |
| Type of Article | Article |
| ISSN | 0040-4039 |
| Keywords | carbamates, carbon dioxide utilization, CO2 fixation, cyclic carbonates, eco-friendly processes, MCM-41, polycarbonates, polyurethanes |
| Abstract | As-synthesized MCM-41 was used as a reusable, heterogeneous catalyst for the eco-friendly synthesis of cyclic carbonate precursors of polycarbonates via a cycloaddition reaction of CO2 with epoxides. This catalyst is also efficient for the synthesis of alkyl and aryl carbamate precursors of polyurethanes via the reaction of amines, CO2 and alkyl halides. Both these reactions were carried out under mild conditions and without using any solvent or co-catalyst. CO2 is utilized as a raw material replacement for toxic phosgene in the conventional synthesis of these chemicals. (c) 2006 Elsevier Ltd. All rights reserved. |
| DOI | 10.1016/j.tetlet.2006.04.057 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 2.347 |
Divison category:
Catalysis and Inorganic Chemistry