Ion-exchange resins for solution phase parallel synthesis of chemical libraries
โ Scribed by Leah M. Gayo; Mark J. Suto
- Book ID
- 104256108
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- French
- Weight
- 202 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
Described are various techniques that employ ion-exchange resins for the solution-phase synthesis of chemical libraries. We have found these resins to be useful as reagents and/or scavengers in a variety of reactions. Nine basic ion-exchange resins were evaluated for the catalysis and purification of an amide synthesized from an acid chloride. A number of the resins examined provided products in >95% purity.
Acidic ion-exchange resins were also useful as scavengers in the synthesis of ureas. A demonstration of the utility of these resins for the preparation of amide, ester and urea libraries is also described.
๐ SIMILAR VOLUMES
The value of ฮฑ,ฮฒ-unsaturated ketones (chalcones) as templates for the combinatorial assembly of N-substituted 2-pyrazolines has been explored. Based on a set of 80 chalcones, an array of 1500 N-carbamoyl, carbonyl and sulfonyl pyrazolines were produced demonstrating that a broad range of diversity c
A series of N-desosaminyl-substituted ketolides was synthesized in parallel by reductive amination of various aldehydes by a N-desmethyl-ketolide scaffold followed by a solid phase extraction protocol using ion exchange resins. In addition, we have demonstrated that diethyl azodicarboxylate (DEAD) c