Synthesis and Optical Properties of all-<i>trans</i>-Oligodiacetylenes
作者:Gregor S. Pilzak、Barend van Lagen、Cindy C. J. Hendrikx、Ernst J. R. Sudhölter、Han Zuilhof
DOI:10.1002/chem.200800241
日期:2008.9.8
A new series of pure and highly soluble oligodiacetylenes (ODAs) was synthesized in high yield and on a multi-milligram scale by a sequence of Sonogashira reactions with a strongly reduced level of homocoupling. The lambda max and epsilon max of these ODAs show an increase with both chain elongation and solvent polarity. A plot of lambda max absorption versus 1/CL (CL=conjugation length) was shown