Epoxidation of 4-alkylidene(arylidene)-1-phenyl-3,5-pyrazolidinediones using alkaline hydrogen peroxide gave the corresponding 5-phenyl-1-oxa-5,6-diazaspiro[2.4]heptane-4,7-dione derivatives. Their reaction with nucleophilic reagents was investigated. The resulting products depend on the type of the diazaspiro compound and/or the nucleophile used.
使用碱性
过氧化氢对4-亚烷基(亚芳基)-1-苯基-3,5-
吡唑烷二酮进行环氧化,得到相应的5-苯基-1-氧杂-5,6-二氮杂螺并[2.4]
庚烷-4,7-二酮衍
生物。研究了它们与亲核试剂的反应。所得产物取决于所使用的二氮杂螺化合物和/或亲核试剂的类型。