Oxidation of α-hydroxysilanes by lead tetraacetate
作者:María Dolores Paredes、Ricardo Alonso
DOI:10.1016/s0040-4039(99)00646-2
日期:1999.5
The effect of α-silyl substitution on the oxidation of alcohols by leadtetraacetate has been evaluated. Under typical conditions for converting alcohols to cyclic ethers, α-hydroxysilanes are instead efficiently transformed into mixed acetylsilyl acetals.
On the Radical Brook Rearrangement. Reactivity of α-Silyl Alcohols, α-Silyl Alcohol Nitrite Esters, and β-Haloacylsilanes under Radical-Forming Conditions
作者:M. D. Paredes、R. Alonso
DOI:10.1021/jo9912855
日期:2000.4.1
Two alkoxyl radical generation methods, lead tetraacetate treatment of alcohols and photolysis of nitrites, were applied to alpha-silyl alcohols 21 and to the corresponding nitrites 25 with a view to forming alpha-silyl alkoxyl radicals 23 and studying their possible radical Brook rearrangement to alpha-silyloxy carbon radicals 24. LTA treatment of 21 led to their quick and efficient conversion into