ORGN 102 |
| As part of an ongoing research program in the design and study of functional conjugated polymers, we have explored strategies in which chemical modification of poly(phenyleneethynylene)s (PPEs) dramatically alters the polymer's architecture and properties. The ease with which structurally diverse PPEs may be prepared renders them ideal scaffolds for such elaboration. An array of small-molecule model substrates has been synthesized and employed for reaction screening. From these studies, transition metal-mediated alkyne reduction has emerged as a highly promising approach to all-cis poly(phenylenevinylene)s (PPVs). While the olefin geometry strongly influences the photophysical properties of PPVs, the synthetic challenges associated with all-cis PPVs has limited their development. Herein we describe the optimization of the alkyne reduction strategy, the scope of the transformation, the utility of this method for facile access to all-cis PPVs and our initial studies of the polymers thus obtained.
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Materials, Devices, and Switches
1:00 PM-5:00 PM, Sunday, 10 September 2006 Moscone Center -- Room 132, Oral
Division of Organic Chemistry |
