作者:Kenta Shimizu、Yasunori Minami、Yoshiaki Nakao、Ken-ichiro Ohya、Hideyuki Ikehira、Tamejiro Hiyama
DOI:10.1246/cl.2013.45
日期:2013.1.5
Cross-coupling reaction of dibromoarenes with HOMSi reagents (organo[2-(hydroxymethyl)phenyl]dimethylsilanes), or alternatively bromoarenes with arylene-bisHOMSi reagents, proceeded smoothly in the presence of a Pd catalyst and a weak base, and ter- or quaterarenes are produced in excellent yields. The present reaction was successfully applied to polyarylene synthesis using 4,7-dibromobenzothiadiazole or a 2,7-dibromofluorene derivative along with a 2,7-fluorenylene-bisHOMSi reagent.
在钯催化剂和弱碱存在下,二溴烯烃与 HOMSi 试剂(有机[2-(羟甲基)苯基]二甲基硅烷)或溴烯烃与芳基-双 HOMSi 试剂的交叉偶联反应顺利进行,并以极好的产率生成三元烯烃或四元烯烃。本反应成功地应用于使用 4,7-二溴苯并噻二唑或 2,7-二溴芴衍生物和 2,7-芴-双 HOMSi 试剂合成聚芳醚。