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        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "The Sandmeyer reaction is a chemical reaction used to synthesize aryl halides from aryl diazonium salts. It is named after the Swiss chemist Traugott Sandmeyer.  The reaction is a method for substitution of an aromatic amino group  via preparation of its diazonium salt followed by its displacement with a nucleophile, often catalyzed by copper(I) salts.  The nucleophile can include halide anions, cyanide, thiols, water, and others." ] ,
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        "http://dbpedia.org/ontology/thumbnail" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/Sandmeyer_rxn_mechanism.svg?width=300"] } } }
