5-ethyl-5-(undec-10-enyl)pyrimidine-2,4,6-trione                                                                                                                                                              在
                                                                                                                                                                                 
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh)                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 15.0h,
                                                                                                                生成                                                 5,5'-(icos-10-ene-1,20-diyl)bis(5-ethylpyrimidine)-2,4,6-trione   、                                                                                             5,5'-(icos-10-ene-1,20-diyl)bis(5-ethylpyrimidine)-2,4,6-trione