Alkenic diols 2 and 14 are iodocyclized providing dihydro-1,3-oxazine 3 and dihydrooxazole 15 in 90 and 93% de, respectively, which are precursors of various C2 symmetric and meso-amino alcohols.
烯
丙二醇2和14经
碘环化反应,分别以90%和93%的产率得到二氢-1,3-噁嗪3和二氢
噁唑15,这两种化合物是制备多种C2对称和内消旋
氨基醇的前体。