Membrane-Supported Recovery of Homogeneous Organocatalysts: A Review
As catalysis plays a significant role in the development of economical and sustainable chemical processes, increased attention is paid to the recovery and reuse of high-value catalysts. Although homogeneous catalysts are usually more active and selective than the heterogeneous ones, both catalyst re...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-08-01
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| Series: | Chemistry |
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| Online Access: | https://www.mdpi.com/2624-8549/2/3/48 |
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| author | Péter Kisszékelyi Sándor Nagy Zsuzsanna Fehér Péter Huszthy József Kupai |
| author_facet | Péter Kisszékelyi Sándor Nagy Zsuzsanna Fehér Péter Huszthy József Kupai |
| author_sort | Péter Kisszékelyi |
| collection | DOAJ |
| description | As catalysis plays a significant role in the development of economical and sustainable chemical processes, increased attention is paid to the recovery and reuse of high-value catalysts. Although homogeneous catalysts are usually more active and selective than the heterogeneous ones, both catalyst recycling and product separation pose a challenge for developing industrially feasible methods. In this respect, membrane-supported recovery of organocatalysts represents a particularly useful tool and a valid option for organocatalytic asymmetric synthesis. However, catalyst leaching/degradation and a subsequent decrease in selectivity/conversion are significant drawbacks. As the effectivity of the membrane separation depends mainly on the size of the catalyst in contrast to the other solutes, molecular weight enlargement of small organocatalysts is usually necessary. In the last few years, several synthetic methodologies have been developed to facilitate their recovery by nanofiltration. With the aim of extending the possibilities for the membrane-supported recovery of organocatalysts further, this contribution presents a review of the existing synthetic approaches for the molecular weight enlargement of organocatalysts. |
| first_indexed | 2024-03-10T16:47:17Z |
| format | Article |
| id | doaj.art-e94dd5db957d41b182b104392be22e48 |
| institution | Directory Open Access Journal |
| issn | 2624-8549 |
| language | English |
| last_indexed | 2024-03-10T16:47:17Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chemistry |
| spelling | doaj.art-e94dd5db957d41b182b104392be22e482023-11-20T11:33:45ZengMDPI AGChemistry2624-85492020-08-012374275810.3390/chemistry2030048Membrane-Supported Recovery of Homogeneous Organocatalysts: A ReviewPéter Kisszékelyi0Sándor Nagy1Zsuzsanna Fehér2Péter Huszthy3József Kupai4Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Szent Gellért tér 4, 1111 Budapest, HungaryDepartment of Organic Chemistry and Technology, Budapest University of Technology and Economics, Szent Gellért tér 4, 1111 Budapest, HungaryDepartment of Organic Chemistry and Technology, Budapest University of Technology and Economics, Szent Gellért tér 4, 1111 Budapest, HungaryDepartment of Organic Chemistry and Technology, Budapest University of Technology and Economics, Szent Gellért tér 4, 1111 Budapest, HungaryDepartment of Organic Chemistry and Technology, Budapest University of Technology and Economics, Szent Gellért tér 4, 1111 Budapest, HungaryAs catalysis plays a significant role in the development of economical and sustainable chemical processes, increased attention is paid to the recovery and reuse of high-value catalysts. Although homogeneous catalysts are usually more active and selective than the heterogeneous ones, both catalyst recycling and product separation pose a challenge for developing industrially feasible methods. In this respect, membrane-supported recovery of organocatalysts represents a particularly useful tool and a valid option for organocatalytic asymmetric synthesis. However, catalyst leaching/degradation and a subsequent decrease in selectivity/conversion are significant drawbacks. As the effectivity of the membrane separation depends mainly on the size of the catalyst in contrast to the other solutes, molecular weight enlargement of small organocatalysts is usually necessary. In the last few years, several synthetic methodologies have been developed to facilitate their recovery by nanofiltration. With the aim of extending the possibilities for the membrane-supported recovery of organocatalysts further, this contribution presents a review of the existing synthetic approaches for the molecular weight enlargement of organocatalysts.https://www.mdpi.com/2624-8549/2/3/48organocatalystorganic solvent nanofiltrationsize-enlargementmolecular weight enlargementcatalyst recovery |
| spellingShingle | Péter Kisszékelyi Sándor Nagy Zsuzsanna Fehér Péter Huszthy József Kupai Membrane-Supported Recovery of Homogeneous Organocatalysts: A Review Chemistry organocatalyst organic solvent nanofiltration size-enlargement molecular weight enlargement catalyst recovery |
| title | Membrane-Supported Recovery of Homogeneous Organocatalysts: A Review |
| title_full | Membrane-Supported Recovery of Homogeneous Organocatalysts: A Review |
| title_fullStr | Membrane-Supported Recovery of Homogeneous Organocatalysts: A Review |
| title_full_unstemmed | Membrane-Supported Recovery of Homogeneous Organocatalysts: A Review |
| title_short | Membrane-Supported Recovery of Homogeneous Organocatalysts: A Review |
| title_sort | membrane supported recovery of homogeneous organocatalysts a review |
| topic | organocatalyst organic solvent nanofiltration size-enlargement molecular weight enlargement catalyst recovery |
| url | https://www.mdpi.com/2624-8549/2/3/48 |
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