4-phenyl-4-vinyl-1,3-dioxolan-2-one 、
1,3-dimethyl-5-(pyridin-3-ylmethylene)pyrimidine-2,4,6(1H,3H,5H)-trione 在
tris(dibenzylideneacetone)dipalladium(0) chloroform complex 、
4,5-双二苯基膦-9,9-二甲基氧杂蒽 作用下,
以
氯仿 为溶剂,
反应 48.0h,
以88%的产率得到2,4-dimethyl-10-phenyl-7-(pyridin-3-yl)-8-oxa-2,4-diazaspiro[5.6]dodec-10-ene-1,3,5-trione