Department of Chemistry, Faculty School of Science, Shinshu University, Matsumoto, Japan.
Org Biomol Chem. 2012 Oct 3;10(41):8308-13. doi: 10.1039/c2ob26028j.
Azulene-substituted butadiynes have been prepared by Cu-mediated cross- and homo-coupling reactions. The azulene-substituted butadiynes reacted with tetracyanoethylene in a formal [2 + 2] cycloaddition reaction to afford the corresponding 1,1,4,4-tetracyanobutadiene chromophores, in excellent yields. Further [2 + 2] cycloaddition with TTF and TCNE gave novel donor-acceptor chromophores and novel azulene-substituted 6,6-dicyanofulvene derivatives.
通过铜介导的交叉偶联和同偶联反应制备了薁取代的丁二炔。薁取代的丁二炔与四氰乙烯发生[2+2]环加成反应，以优异的收率得到相应的 1,1,4,4-四氰基丁二烯生色团。进一步与 TTF 和 TCNE 发生[2+2]环加成反应，得到了新型给体-受体生色团和新型薁取代的 6,6-二氰基富烯衍生物。
