Synthesis of cyclic carbonate monomers
US11034664B1 · kind B1 · utility
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19Claims
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Key dates
| Filing date | May 11, 2020 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | May 11, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D233/60
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Techniques regarding the synthesis of cyclic carbonate monomers are provided. For example, one or more embodiments described herein can comprise a method, which can include cyclizing a functionalized diol monomer with N,N′-carbonyldiimidazole, wherein the cyclizing produces a cyclic carbonate monomer and an imidazole carbamate. The method can also include activating the imidazole carbamate with an acid, wherein the activating promotes cyclization of the imidazole carbamate into the cyclic carbonate monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.