Using a Temporary Silicon Connection in Stereoselective Allylation with Allylsilanes: Application to the Synthesis of Stereodefined 1,2,4-Triols
作者:Julien Beignet、Liam R. Cox
DOI:10.1021/ol035762o
日期:2003.10.1
[reaction: see text]. Treatment of aldehyde 6 with TMSOTf, in the presence of a Bronsted acid scavenger, effects an intramolecular allylation to provide the oxasilacycle 7 as the major diastereoisomer. Tamao oxidation of the C-Si bond in 7 affords the corresponding 1,2,4-triol 9.
[反应:请参见文字]。在布朗斯台德酸清除剂的存在下,用TMSOTf处理醛6会引起分子内烯丙基化,从而提供作为主要非对映异构体的oxasilacycle 7。在7中C-Si键的Tamao氧化得到相应的1,2,4-三醇9。