A chemical of this type is oxidatively coupled to an organo-copper reagent in Castro-Stephens coupling, which is also one mechanism for the copper-catalyzed Ullman reaction between two of these molecules.
A chemical of this type is oxidatively coupled to an organo-copper reagent in Castro-Stephens coupling, which is also one mechanism for the copper-catalyzed Ullman reaction between two of these molecules. The most direct way to synthesize these compounds breaks aromaticity by creating a cyclodienyl cation intermediate, while other synthesis methods for them using diazonium salts are reactions named for Schiemann and Sandmeyer. As these are generally not susceptible to simple nucleophilic substitution, they are much less reactive than their alkyl analogues, which is also the case for the non-alkyl Grignard reagents that can be prepared by reacting them with magnesium. FTP, name these compounds that consist of a substituent derived from a simple aromatic ring bound to an atom from group 17, exemplified by chlorobenzene.
A chemical of this type is oxidatively coupled to an organo-copper reagent in Castro-Stephens coupling, which is also one mechanism for the copper-catalyzed Ullman reaction between two of these molecules.
{aryl halide}s [accept {halogenoarene} or {haloarene}; prompt on