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。