Synthesis of 5,5′-Disubstituted 2,2′-Bipyridines for Modular Chemistry
作者:Oliver Henze、Uwe Lehmann、A. Dieter Schlüter
DOI:10.1055/s-1999-3445
日期:1999.4
A 0.5-11 g scale synthesis of the 5,5′-disubstituted 2,2′-bipyridines 8 is described. The pyridine units are connected to one another by Pd-catalyzed cross-coupling reactions. This method allows one to introduce bromo functions and flexible chains at the terminal phenyls which optimizes this class of bidentate ligands for supra- and macromolecular applications.
New Parts for a Construction Set of Bifunctional Oligo(het)arylene Building Blocks for Modular Chemistry
作者:Govindaswamy Manickam、A. Dieter Schlüter
DOI:10.1055/s-2000-6344
日期:——
The 100 mg to 5 g scale synthesis of a variety of arylene (6, 11, 13) and hetarylene building blocks (15, 17, 18) by and for Suzuki/Stille type cross-coupling reactions is reported. These building blocks carry solubilizing hexyloxymethyl substituents as well as boronic acid ester and Br/I functionalities. This considerably widens the already existing construction set for the modular chemistry approach to shape persistent and functional compounds on the nanometer scale.