Reaction of bromine with phenyl-substituted tertiary alcohols
作者:Douglas W. Grant、Roy Shilton
DOI:10.1039/p19740000135
日期:——
The reaction between bromine and 1,1-diphenylalkan-1-ols is shown to proceed by dehydration to an alkene, followed in aqueous acetic acid by formation of a bromohydrin which may then rearrange to a ketone. A number of new bromohydrins and bromoalkenes have been prepared.
Et<sub>2</sub>Zn-Mediated Rearrangement of Bromohydrins
作者:Lezhen Li、Peijie Cai、Qingxiang Guo、Song Xue
DOI:10.1021/jo800231s
日期:2008.5.1
and highly efficient method for the rearrangement of bromohydrins mediated by Et2Zn to synthesize carbonylcompounds was described. Various β-bromo alcohols were treated with 0.6 equiv of Et2Zn to form a zinc complex in CH2Cl2 at room temperature for 2 h, followed by 1,2-migration to give the corresponding carbonylcompounds. This remarkable and clean rearrangement is general for acyclic and cyclic bromohydrins