Factors Determining the Course and Mechanism of Grignard Reactions. XIV. Replacement of Halogen Atoms of Aromatic Halides with Hydrogen Atoms by the Action …

MS Kharasch, DC Sayles, EK Fields

Index: Kharasch; Sayles; Fields Journal of the American Chemical Society, 1944 , vol. 66, p. 481

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Abstract

It is well established that aliphatic and aromatic Grignard reagents do not react, even at elevated temperatures] with monohalogenated and dihalogenated aromatic compounds. However] an energetic reaction occurs when cobaltous chloride is added to such a reaction mixture. Thus, butylmagnesium bromide reacts with phenyl bromide in the presence of 5 mole per cent. of cobaltous chloride to yield the following compounds:

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