Nickelalactone als Synthesebausteine: Sonochemische und Bimetallaktivierung der Kreuzkopplungsreaktion mit Alkyl-halogeniden
作者： Reinald Fischer , Dirk Walther , Gabriele Braunlich , Bernd Undeutsch , Werner Ludwig
DOI: 10.1016/0022-328X(92)80077-B
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摘要: 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 cyclic anhydrides. In the presence of MnI by activation ultrasound they react selectively alkyl iodides cross coupling reactions. The reason for activating effect is formation bimetallic complexes. Many reactive functional groups ( e.g. COOR, CHO, CN) tolerated. Therefore reaction preparative value synthesis functionalized carboxylic acids.
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