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Screening and deconvoluting complex mixtures of catalyst components in reaction development
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wolf, Elena |
| Copyright Year | 2015 |
| Abstract | Reaction development is a complex multidimensional problem that, in a representative scenario, requires often the unique convergence of multiple parameters for a desired reactivity. The incorrect choice of a single parameter, such as the pre-catalyst, the ligand, the solvent or the acid/base, can completely eliminate the reactivity of the system. Thus, the process often requires extensive manipulations to obtain a lead hit. To avoid this time consuming process, many creative screening approaches have been developed but the large number of reactions necessary to explore the intersection of just three or four parameters is still a challenge for chemists who do not have access to high throughput experimentation. A reaction-economic combinatorial strategy is described for lead hit identification in catalyst discovery directed towards a specific transformation. Complex mixtures of rationally chosen pre-catalysts and ligands are screened against various reaction parameters to identify lead conditions in a small number of reactions. Iterative deconvolution of the resulting hits identifies which components contribute to the lead in situ generated catalyst. The application of this screening approach is described in the dehydrative Friedel-Crafts reaction, in the ortho-C–H arylation of benzamides, in the C3-indole alkylation and in the asymmetric hetero Diels-Alder cycloaddition. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://tel.archives-ouvertes.fr/tel-01375978v1/document |
| Alternate Webpage(s) | https://tel.archives-ouvertes.fr/tel-01375978/document |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
