作者:Daniel J. Gregg、Cecile M. A. Ollagnier、Christopher M. Fitchett、Sylvia M. Draper
DOI:10.1002/chem.200501289
日期:2006.4.3
dibromo derivative 11 is a useful precursor for the formation of a mono ethynyl 13 and diethynyl 14 substituted polyphenylene. Changing the dienophile to di(2-thienyl)acetylene gives an S-heteroatom polyphenylene 15. The compounds were fully characterized by using (1)H, (13)C and a range of 2 D NMR spectroscopic techniques, elemental analysis, and mass spectrometry. Oxidative cyclodehydrogenation of dimethoxy