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Structure of 944902-88-9
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2,4-Dichloro-5H,7H,8H-pyrano[4,3-d]pyrimidine features a fused pyrano-pyrimidine core with strategic chlorine substituents at the 2 and 4 positions, enhancing electrophilicity for downstream functionalization. This bench-stable heterocycle integrates readily into synthetic sequences requiring electron-deficient aromatic systems.
2,4-Dichloro-5H,7H,8H-pyrano[4,3-d]pyrimidine serves as a versatile building block in heterocyclic synthesis, enabling efficient access to pyrano[4,3-d]pyrimidine scaffolds through nucleophilic substitution and coupling reactions. Its dichloro functionality provides orthogonal reactivity for sequential functionalization, while the fused ring system offers enhanced stability and predictable regiochemistry. Ideal for medicinal chemistry campaigns requiring robust, bench-stable intermediates with high synthetic utility in API development workflows.
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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 : P261-P264-P270-P271-P280-P302+P352-P304+P340-P330-P362+P364-P405-P501
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Lot numbers can be found on the outside label of a product: