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Structure of 1053656-37-3
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Methyl 5,7-dichloropyrazolo[1,5-a]pyrimidine-3-carboxylate features a fused pyrazolopyrimidine core bearing two chlorine substituents at electron-rich positions, enabling direct functionalization in cross-coupling and heterocyclic elaboration. This bench-stable, moisture-tolerant derivative integrates readily into synthetic sequences requiring halogen-directed C–H activation or transition-metal-catalyzed diversification.
Methyl 5,7-dichloropyrazolo[1,5-a]pyrimidine-3-carboxylate serves as a versatile building block for the synthesis of pyrazolo[1,5-a]pyrimidine-based scaffolds. Its dichloro substitution pattern enables regioselective functionalization at C5 and C7, while the ester group facilitates downstream transformations such as hydrolysis or coupling reactions. The compound exhibits good bench stability and is compatible with standard cross-coupling and nucleophilic substitution protocols, making it valuable in medicinal chemistry and agrochemical research.
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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-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501
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Lot numbers can be found on the outside label of a product: