synthesis of elaborate benzofuran-2-carboxamide derivatives through a combination of 8-aminoquinoline directed c–h arylation and transamidation chemistry
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ID: 167717
2020
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Abstract
Herein, we present a short and highly modular synthetic route that involves 8-aminoquinoline directed C−H arylation and transamidation chemistry, and which enables access to a wide range of elaborate benzofuran-2-carboxamides. For the directed C−H arylation reactions, Pd catalysis was used to install a wide range of aryl and heteroaryl substituents at the C3 position of the benzofuran scaffold in high efficiency. Directing group cleavage and further diversification of the C3-arylated benzofuran products were then achieved in a single synthetic operation through the utilization of a one-pot, two-step transamidation procedure, which proceeded via the intermediate N-acyl-Boc-carbamates. Given the high efficiency and modularity of this synthetic strategy, it constitutes a very attractive method for generating structurally diverse collections of benzofuran derivatives for small molecule screening campaigns.
| Reference Key |
oschmann2020moleculessynthesis
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|---|---|
| Authors | ;Michael Oschmann;Linus Johansson Holm;Monireh Pourghasemi-Lati;Oscar Verho |
| Journal | Journal of ethnopharmacology |
| Year | 2020 |
| DOI |
10.3390/molecules25020361
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| URL | |
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