1,2,3,4-tetrahydro-1,3-dimethyl-2,4-dioxo-6-<(triphenylphosphoranylidene)amino>pyrimidine 以
乙腈 为溶剂,
160.0 ℃
、266.64 Pa
条件下,
反应 14.0h,
生成
ethyl 1,2,3,4,6,7-hexahydro-3,6-dimethyl-2,4,7-trioxo-5-<(triphenylphosphoranylidene)amino>imidazo<5,1-f><1,2,4>triazine-1-carboxylate