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Structure of 940911-03-5
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5-Ethynylpyridine-2-carbaldehyde features a conjugated alkyne and aldehyde functional group positioned ortho to each other on a pyridine ring, enabling efficient copper-catalyzed click reactions. This bifunctional scaffold integrates readily into complex molecular architectures under mild conditions, offering high chemoselectivity and stability in diverse synthetic workflows.
5-Ethynylpyridine-2-carbaldehyde serves as a versatile building block in transition-metal-catalyzed coupling reactions, enabling efficient access to conjugated heteroaryl systems. The aldehyde functionality facilitates direct functionalization or reductive amination, while the terminal alkyne supports Sonogashira and Glaser-type couplings. Its stability under standard bench conditions and compatibility with diverse reaction environments make it a practical choice for constructing complex scaffolds in medicinal chemistry and materials science.
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GHS Pictogram :
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GHS No : GHS07
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Signal Word : Warning
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UN#: N/A
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Class : N/A
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Packing Group : N/A
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Hazard Statements : H302-H315-H319-H335
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Precautionary Statements : P260-P264-P270-P271-P280-P301+P310-P302+P352-P304+P340-P305+P351+P338-P312-P330-P332+P313-P337+P313-P362+P364-P403+P233-P405-P501
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Lot numbers can be found on the outside label of a product: