Diastereoselectivity in the Carroll rearrangement of β-keto esters of tertiary allylic alcohols
作者:Michael E. Jung、Brian A. Duclos
DOI:10.1016/j.tetlet.2003.10.102
日期:2004.1
Carroll rearrangement of β-keto esters derived from tertiary allylic alcohols, for example, 7, under basic conditions followed by decarboxylation of the resulting β-keto acids yielded the expected γ,δ-unsaturated methyl ketones 8 with a range of olefin geometries from 100:0 to 1:1.8 E/Z, depending on the relative steric requirements of the two groups at the allylic center.
在碱性条件下,衍生自叔烯丙醇的β-酮酯(例如7)的Carroll重排,然后将所得的β-酮酸脱羧,得到预期的γ,δ-不饱和甲基酮8,其烯烃几何结构范围为100 :0到1:1.8 E / Z,取决于在烯丙基中心的两组的相对空间要求。