... After an initial section on the direct conversion of organic halides to organomercurials, a variety of transmetallation reactions will be discussed. ... chem. Ges. 14, 2110 (1881). 87. Jacobsen, O.: ibid. 17, 2372 (1884). 88. Meyer, R.: J. prakt. Chem. 34, 103 (1886). 89. Weiler, J.: Ber. ...