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Structure of 69814-56-8
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2-Methylene-1,3-dioxepane is a strained cyclic ether featuring a reactive exocyclic methylene group. This structural motif enables direct incorporation into ring-opening or cycloaddition reactions, serving as a key intermediate in the synthesis of complex heterocycles and bioactive molecules under mild conditions.
2-Methylene-1,3-dioxepane serves as a versatile synthon for the construction of oxygen-containing heterocycles and functionalized carbocycles. Its strained dioxepane ring enables selective ring-opening reactions with nucleophiles, while the exocyclic methylene group participates in Diels-Alder cycloadditions and conjugate additions. The compound exhibits good bench stability and facilitates efficient access to complex molecular architectures through orthogonal reactivity patterns.
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GHS Pictogram :
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GHS No : GHS02,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-H319-H335
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Precautionary Statements : P210-P233-P240-P241-P242-P243-P280-P303+P361+P353-P370+P378-P403+P235-P501
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Lot numbers can be found on the outside label of a product: