| http://www.w3.org/ns/prov#value | - Examples for the conversion of hydroxy or amino groups bonded on aromatic or aliphatic radicals are the reactions performed in anhydrous, aprotic solvents such as tetrahydrofuran, dimethoxyethane or dimethyl sulfoxide in the presence of an acid trap such as, for example, sodium hydroxide, sodium hydride or alkaline or alkaline earth carbonates such as, for example, sodium, magnesium, potassium, ca
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