A new nucleophilic isopropyl transfer reagent, triisopropylsulfoxonium tetrafluoroborate, has been prepared and evaluated. Thus, using this reagent and NaH in DMF, a range of electron deficient alkenes, including several chalcone analogues, α,β-unsaturated ketones, dienones and quinones, plus α,β-unsaturated esters, nitrile, sulfone and nitro examples, have been converted into the corresponding gem-dimethylcyclopropane compounds.
一种新的亲核异丙基转移试剂,
三异丙基亚
磺酸四
氟硼酸盐,已被制备并评估。使用该试剂和氢化
钠在二甲基形式酰胺中,一系列电子缺乏的烯烃,包括若干
香豆素类似物、α,β-不饱和酮、二烯酮和醌,以及α,β-不饱和酯、腈、磺酰和
硝基化合物,已被转化为相应的gem-二
甲基环丙烷化合物。