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Monoprotected Amino Acid (MPAA) Ligand Enabled C–H Alkynylation of Phenyl Acetic Acid
- Source :
- Organic Letters; November 2018, Vol. 20 Issue: 22 p7274-7277, 4p
- Publication Year :
- 2018
-
Abstract
- A weakly carboxylate-directed palladium(II)-catalyzed ortho-C–H alkynylation of diverse phenylacetic acids promoted by monoprotected amino acid ligand enabled is reported. The reaction has a broad substrate scope including α-secondary, tertiary, and quaternary phenylacetic acids. Notably, the direct ortho-C–H alkynylation of α-quaternary phenylacetic acids and chiral α-tertiary phenylacetic acids was achieved for the first time. Moreover, this method could be used for simple and efficient gram-scale synthesis and diversification of an anti-inflammatory drug.
Details
- Language :
- English
- ISSN :
- 15237060 and 15237052
- Volume :
- 20
- Issue :
- 22
- Database :
- Supplemental Index
- Journal :
- Organic Letters
- Publication Type :
- Periodical
- Accession number :
- ejs46916548
- Full Text :
- https://doi.org/10.1021/acs.orglett.8b03182