3-chloro-2-chloromethyl-1-propene

Also known as 1,1-bis(chloromethyl)ethylene

1,1-Bis(chloromethyl)ethylene is the organic compound with the formula CH2=C(CH2Cl)2. It is a colorless liquid. Featuring two allylic chloride substituents, it is dialkylating agent.

Wikidata facts

Mass: 123.985

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canonical SMILES: C=C(CCl)CCl
chemical formula: C₄H₆Cl₂

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Synthesis and reactions
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1,1-Bis(chloromethyl)ethylene is the organic compound with the formula CH2=C(CH2Cl)2. It is a colorless liquid. Featuring two allylic chloride substituents, it is dialkylating agent.

==Synthesis and reactions== It is prepared from pentaerythritol via a multistep procedure, beginning with the partial chlorination. The compound reacts with diiron nonacarbonyl to give the complex of trimethylenemethane Fe(η4-C(CH2)3)(CO)3. It is also a precursor to [1.1.1]-propellane.