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Updated: Jun 6, 2025

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Published on: June 21, 2017
Remote Alkynylation of Aliphatic Amines
Elizabeth M Dauncey1, Tom D Sheppard2, Peter D Smith1
1Early Chemical Development, Pharmaceutical Sciences R&D, AstraZeneca, Macclesfield, SK10 2NA, U.K.
Researchers developed a new palladium-catalyzed method for alkynylating aliphatic amines. This advance expands synthetic chemistry tools, enabling new ways to create complex molecules with the remote alkynylation of amines.
Area of Science:
- Organic Chemistry
- Catalysis
- Synthetic Methodology
Background:
- Transition metal-catalyzed C-H activation/functionalization cascades have significantly advanced synthetic chemistry.
- However, efficient methods for the remote alkynylation of linear aliphatic amines are still limited.
Purpose of the Study:
- To develop a novel palladium-catalyzed protocol for the alkynylation of aliphatic amines.
- To address the limitations in existing methods for remote alkynylation of amines.
Main Methods:
- Utilized a palladium-catalyzed directing-group strategy.
- Investigated the alkynylation of linear aliphatic amines.
Main Results:
- Successfully disclosed a new directing-group approach for the alkynylation of aliphatic amines.
- Demonstrated the synthetic utility through a gram-scale reaction.
- Confirmed broad functional group compatibility.
Conclusions:
- The developed palladium-catalyzed method provides a valuable new tool for synthetic chemists.
- This protocol enables the remote alkynylation of aliphatic amines, expanding synthetic possibilities.
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