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Statements

Subject Item
dbr:Kharasch_addition
rdf:type
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rdfs:label
Kharasch addition
rdfs:comment
The Kharasch addition is an organic reaction and a metal-catalysed free radical addition of CXCl3 compounds (X = Cl, Br, H) to alkenes. The reaction was discovered by Morris S. Kharasch in the 1940s. The basic reaction scheme runs as follows: R2C=CH2 + R'X → R2CX-CH2R': and proceeds through the CXCl2 free radical. Examples of organohalides are carbon tetrachloride and chloroform. The addition is an anti-Markovnikov addition. Early work linked the addition to olefin polymerization and is therefore considered a first step into what was to become atom transfer radical polymerization.
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n14:Kharasch_addition_mechanism.png
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dbo:abstract
The Kharasch addition is an organic reaction and a metal-catalysed free radical addition of CXCl3 compounds (X = Cl, Br, H) to alkenes. The reaction was discovered by Morris S. Kharasch in the 1940s. The basic reaction scheme runs as follows: R2C=CH2 + R'X → R2CX-CH2R': and proceeds through the CXCl2 free radical. Examples of organohalides are carbon tetrachloride and chloroform. The addition is an anti-Markovnikov addition. Early work linked the addition to olefin polymerization and is therefore considered a first step into what was to become atom transfer radical polymerization. An example of Kharasch addition is the synthesis of 1,1,3-trichloro-n-nonane from 1-octene, chloroform and ferric chloride.
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