A unique and highly remarkable boron Trifluoride catalyzed rearrangement Of 2,2-di-t-butyloxirane into 2,2,3,3,4,4-hexamethyltetrahydrofuran
作者:Norbert De Kimpe、Laurent De Buyck、Roland Verhé、Niceas Schamp
DOI:10.1016/0040-4020(84)85013-9
日期:1984.1
-The boron trifluoride catalyzed rearrangement of 2,2-di-t-butyloxirane, involving competitive reactions of transient carbenium ions, could be selectively directed towards either 2,2,3,3,4,4- hexamethyltetrahydrofuran or 2-t-butyl-2,3-dimethyl-3-buten-1-ol. Hydride shift to afford 2,2-di-t-butylacetaldehyde was only observed to a minor extent.
-涉及瞬态碳离子竞争反应的三氟化硼催化的2,2-二叔丁基环氧乙烷的重排可以选择性地导向2,2,3,3,3,4,4-六甲基四氢呋喃或2-叔丁基-2,3-二甲基-3-丁烯-1-醇。仅在很小的程度上观察到氢化物转移得到2,2-二叔丁基乙醛。