Nickelalactone als Synthesebausteine: Sonochemische und Bimetallaktivierung der Kreuzkopplungsreaktion mit Alkyl-halogeniden

R Fischer, D Walther, G Braunlich, B Undeutsch…

Index: Fischer, Reinald; Walther, Dirk; Braeunlich, Gabriele; Undeutsch, Bernd; Ludwig, Werner Journal of Organometallic Chemistry, 1992 , vol. 427, # 3 p. 395 - 407

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Citation Number: 36

Abstract

Abstract Nickelalactones with five-and six-membered chelate ring structures can be synthesized in a simple one-pot reaction, starting from Ni (acac) 2, bipy, Et 3 Al and cyclic anhydrides. In the presence of MnI 2 and by activation with ultrasound they react selectively with alkyl iodides in cross coupling reactions. The reason for the activating effect of MnI 2 is the formation of bimetallic complexes. Many reactive functional groups (eg COOR, CHO, ...