Free radical additions of hydrogen donor solvents to tert-butyl perpent-4-enoate have given 4-substituted γ-butyrolactones, with yields of 50 % or greater. Such reactions applied to allyl-tert-butyl peroxide have produced 2,3-epoxypropanation of these solvents. Similar addition-elimination processes occurred with tert-butyl 4-methyl-perpent-4-enoate, tert-butyl 2,2-dimethyl-perpent-4-enoate and tert-butyl-methallyl
将氢供体溶剂自由基加到过戊-4-烯酸叔丁酯中,得到4-取代的
γ-丁内酯,产率为50%或更高。应用于烯丙基
叔丁基过氧化物的这种反应已经产生了这些溶剂的2,3-环氧
丙烷化。4-甲基-过戊-4-烯酸酯叔丁基,2,2-二甲基-过戊-4-烯酸酯叔丁基和过氧化甲基叔丁基甲基烯丙基也发生了类似的加成消除过程,但对于叔丁基5则失败了。 -甲基-己基-4-烯酸酯和叔丁基-3-甲基-丁-2-烯基过氧化物。