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Structure of 67237-53-0
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3-Ethynylthiophene may be used in the synthesis of the following:1-(2-bromobenzyl)-4-(thiophen-3-yl)-1H-1,2,3-triazole which is obtained by heating with 2-iodophenylethylazide in the presence of copper acetate monohydrate catalyst in N-methyl-2-pyrrolidoneN-benzyl-1-phenyl-5-(thiophen-3-yl)-4-pentyn-2-amine via a multi-step reaction process[(C4H3S-3)CCAg]n, a polymeric compound obtained via reaction with silver nitrate in the presence of triethylamine in acetonitrile4,5-bis(thiophen-3-ylethynyl)phthalonitrile via Sonogashira cross-coupling reaction with 4,5-dichlorophthalonitrile
3-Ethynylthiophene serves as a versatile building block in synthetic organic chemistry, enabling palladium-catalyzed coupling reactions such as Sonogashira and Stille transformations. Its conjugated alkyne functionality offers enhanced stability and ease of purification compared to more reactive alternatives, facilitating the construction of complex heterocyclic systems and π-conjugated scaffolds relevant to materials science and medicinal chemistry applications.
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GHS No : GHS02,GHS05,GHS07
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Signal Word : Danger
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UN#: 1993
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Class : 3
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Packing Group : Ⅲ
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Hazard Statements : H226-H315-H318-H335
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Precautionary Statements : P210-P233-P240-P241-P242-P243-P261-P264-P271-P280-P302+P352-P304+P340-P362+P364-P370+P378-P405-P501
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Lot numbers can be found on the outside label of a product: