Journal
CHEMICAL SCIENCE
Volume 5, Issue 10, Pages 3952-3957Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4sc01545b
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Funding
- Pennsylvania State University
- NSF [CAREER CHE-1055795]
- ACS-PRF [51705-DN11]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1055795] Funding Source: National Science Foundation
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We report a highly efficient and practical protocol for palladium-catalyzed N-quinolylcarboxamide (AQ)-directed arylation of the unactivated beta-C(sp(3))-H bonds of alanine with aryl iodides at room temperature. For the first time, a broad range of easily accessible aryl iodides can be installed onto the beta-methyl group of AQ-coupled phthaloyl alanine mono-selectively, providing both natural and unnatural aromatic alpha-amino acids. Access to these mono-arylated compounds enables subsequent AQ-directed diastereoselective C-H functionalization, allowing the preparation of various beta-disubstituted aromatic alpha-amino acids in a programmable manner.
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